21106188

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 57220800

約数和(自身を除く): 36114612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 523, 531, 684, 708, 1046, 1062, 1121, 1569, 2092, 2124, 2242, 3138, 3363, 4484, 4707, 6276, 6726, 9414, 9937, 10089, 13452, 18828, 19874, 20178, 29811, 30857, 39748, 40356, 59622, 61714, 89433, 92571, 119244, 123428, 178866, 185142, 277713, 357732, 370284, 555426, 586283, 1110852, 1172566, 1758849, 2345132, 3517698, 5276547, 7035396, 10553094, 21106188]

約数ペア:

[(1, 21106188), (2, 10553094), (3, 7035396), (4, 5276547), (6, 3517698), (9, 2345132), (12, 1758849), (18, 1172566), (19, 1110852), (36, 586283), (38, 555426), (57, 370284), (59, 357732), (76, 277713), (114, 185142), (118, 178866), (171, 123428), (177, 119244), (228, 92571), (236, 89433), (342, 61714), (354, 59622), (523, 40356), (531, 39748), (684, 30857), (708, 29811), (1046, 20178), (1062, 19874), (1121, 18828), (1569, 13452), (2092, 10089), (2124, 9937), (2242, 9414), (3138, 6726), (3363, 6276), (4484, 4707)]