210958813

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 239721216

約数和(自身を除く): 28762403

約数列:

[1, 13, 31, 67, 169, 403, 601, 871, 2077, 5239, 7813, 11323, 18631, 27001, 40267, 101569, 242203, 351013, 523471, 1248277, 3148639, 6805123, 16227601, 210958813]

約数ペア:

[(1, 210958813), (13, 16227601), (31, 6805123), (67, 3148639), (169, 1248277), (403, 523471), (601, 351013), (871, 242203), (2077, 101569), (5239, 40267), (7813, 27001), (11323, 18631)]