21497788125

素因数分解:

$3^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:866

約数の個数: 160

約数和(自身を含む): 43726003200

約数和(自身を除く): 22228215075

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 125, 135, 165, 179, 225, 275, 297, 375, 495, 537, 625, 647, 675, 825, 895, 1125, 1375, 1485, 1611, 1875, 1941, 1969, 2475, 2685, 3235, 3375, 4125, 4475, 4833, 5625, 5823, 5907, 6875, 7117, 7425, 8055, 9705, 9845, 12375, 13425, 16175, 16875, 17469, 17721, 20625, 21351, 22375, 24165, 29115, 29535, 35585, 37125, 40275, 48525, 49225, 53163, 61875, 64053, 67125, 80875, 87345, 88605, 106755, 111875, 115813, 120825, 145575, 147675, 177925, 185625, 192159, 201375, 242625, 246125, 265815, 320265, 335625, 347439, 404375, 436725, 443025, 533775, 579065, 604125, 727875, 738375, 889625, 960795, 1006875, 1042317, 1213125, 1230625, 1273943, 1329075, 1601325, 1737195, 2183625, 2215125, 2668875, 2895325, 3020625, 3126951, 3639375, 3691875, 3821829, 4448125, 4803975, 5211585, 6369715, 6645375, 8006625, 8685975, 10918125, 11075625, 11465487, 13344375, 14476625, 15634755, 19109145, 24019875, 26057925, 31848575, 33226875, 34396461, 40033125, 43429875, 57327435, 72383125, 78173775, 95545725, 120099375, 130289625, 159242875, 171982305, 217149375, 286637175, 390868875, 477728625, 651448125, 796214375, 859911525, 1433185875, 1954344375, 2388643125, 4299557625, 7165929375, 21497788125]

約数ペア:

[(1, 21497788125), (3, 7165929375), (5, 4299557625), (9, 2388643125), (11, 1954344375), (15, 1433185875), (25, 859911525), (27, 796214375), (33, 651448125), (45, 477728625), (55, 390868875), (75, 286637175), (99, 217149375), (125, 171982305), (135, 159242875), (165, 130289625), (179, 120099375), (225, 95545725), (275, 78173775), (297, 72383125), (375, 57327435), (495, 43429875), (537, 40033125), (625, 34396461), (647, 33226875), (675, 31848575), (825, 26057925), (895, 24019875), (1125, 19109145), (1375, 15634755), (1485, 14476625), (1611, 13344375), (1875, 11465487), (1941, 11075625), (1969, 10918125), (2475, 8685975), (2685, 8006625), (3235, 6645375), (3375, 6369715), (4125, 5211585), (4475, 4803975), (4833, 4448125), (5625, 3821829), (5823, 3691875), (5907, 3639375), (6875, 3126951), (7117, 3020625), (7425, 2895325), (8055, 2668875), (9705, 2215125), (9845, 2183625), (12375, 1737195), (13425, 1601325), (16175, 1329075), (16875, 1273943), (17469, 1230625), (17721, 1213125), (20625, 1042317), (21351, 1006875), (22375, 960795), (24165, 889625), (29115, 738375), (29535, 727875), (35585, 604125), (37125, 579065), (40275, 533775), (48525, 443025), (49225, 436725), (53163, 404375), (61875, 347439), (64053, 335625), (67125, 320265), (80875, 265815), (87345, 246125), (88605, 242625), (106755, 201375), (111875, 192159), (115813, 185625), (120825, 177925), (145575, 147675)]