31195855551

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1\times {\mathrm{1637}}^1$

素因数の和:2152

約数の個数: 64

約数和(自身を含む): 49896677376

約数和(自身を除く): 18700821825

約数列:

[1, 3, 7, 21, 31, 73, 93, 217, 219, 401, 511, 651, 1203, 1533, 1637, 2263, 2807, 4911, 6789, 8421, 11459, 12431, 15841, 29273, 34377, 37293, 47523, 50747, 87017, 87819, 119501, 152241, 204911, 261051, 355229, 358503, 614733, 656437, 836507, 907463, 1065687, 1969311, 2509521, 2722389, 3704531, 4595059, 6352241, 11113593, 13785177, 19056723, 20349547, 25931717, 47919901, 61048641, 77795151, 142446829, 143759703, 335439307, 427340487, 1006317921, 1485516931, 4456550793, 10398618517, 31195855551]

約数ペア:

[(1, 31195855551), (3, 10398618517), (7, 4456550793), (21, 1485516931), (31, 1006317921), (73, 427340487), (93, 335439307), (217, 143759703), (219, 142446829), (401, 77795151), (511, 61048641), (651, 47919901), (1203, 25931717), (1533, 20349547), (1637, 19056723), (2263, 13785177), (2807, 11113593), (4911, 6352241), (6789, 4595059), (8421, 3704531), (11459, 2722389), (12431, 2509521), (15841, 1969311), (29273, 1065687), (34377, 907463), (37293, 836507), (47523, 656437), (50747, 614733), (87017, 358503), (87819, 355229), (119501, 261051), (152241, 204911)]