21613510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{617}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 40580352

約数和(自身を除く): 18966842

約数列:

[1, 2, 5, 10, 31, 62, 113, 155, 226, 310, 565, 617, 1130, 1234, 3085, 3503, 6170, 7006, 17515, 19127, 35030, 38254, 69721, 95635, 139442, 191270, 348605, 697210, 2161351, 4322702, 10806755, 21613510]

約数ペア:

[(1, 21613510), (2, 10806755), (5, 4322702), (10, 2161351), (31, 697210), (62, 348605), (113, 191270), (155, 139442), (226, 95635), (310, 69721), (565, 38254), (617, 35030), (1130, 19127), (1234, 17515), (3085, 7006), (3503, 6170)]