21995160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{877}}^1$

素因数の和:921

約数の個数: 128

約数和(自身を含む): 75859200

約数和(自身を除く): 53864040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 836, 877, 1045, 1140, 1254, 1320, 1672, 1754, 2090, 2280, 2508, 2631, 3135, 3508, 4180, 4385, 5016, 5262, 6270, 7016, 8360, 8770, 9647, 10524, 12540, 13155, 16663, 17540, 19294, 21048, 25080, 26310, 28941, 33326, 35080, 38588, 48235, 49989, 52620, 57882, 66652, 77176, 83315, 96470, 99978, 105240, 115764, 133304, 144705, 166630, 183293, 192940, 199956, 231528, 249945, 289410, 333260, 366586, 385880, 399912, 499890, 549879, 578820, 666520, 733172, 916465, 999780, 1099758, 1157640, 1466344, 1832930, 1999560, 2199516, 2749395, 3665860, 4399032, 5498790, 7331720, 10997580, 21995160]

約数ペア:

[(1, 21995160), (2, 10997580), (3, 7331720), (4, 5498790), (5, 4399032), (6, 3665860), (8, 2749395), (10, 2199516), (11, 1999560), (12, 1832930), (15, 1466344), (19, 1157640), (20, 1099758), (22, 999780), (24, 916465), (30, 733172), (33, 666520), (38, 578820), (40, 549879), (44, 499890), (55, 399912), (57, 385880), (60, 366586), (66, 333260), (76, 289410), (88, 249945), (95, 231528), (110, 199956), (114, 192940), (120, 183293), (132, 166630), (152, 144705), (165, 133304), (190, 115764), (209, 105240), (220, 99978), (228, 96470), (264, 83315), (285, 77176), (330, 66652), (380, 57882), (418, 52620), (440, 49989), (456, 48235), (570, 38588), (627, 35080), (660, 33326), (760, 28941), (836, 26310), (877, 25080), (1045, 21048), (1140, 19294), (1254, 17540), (1320, 16663), (1672, 13155), (1754, 12540), (2090, 10524), (2280, 9647), (2508, 8770), (2631, 8360), (3135, 7016), (3508, 6270), (4180, 5262), (4385, 5016)]