21399858

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{38351}}^1$

素因数の和:38390

約数の個数: 24

約数和(自身を含む): 47863296

約数和(自身を除く): 26463438

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 38351, 76702, 115053, 230106, 345159, 690318, 1188881, 2377762, 3566643, 7133286, 10699929, 21399858]

約数ペア:

[(1, 21399858), (2, 10699929), (3, 7133286), (6, 3566643), (9, 2377762), (18, 1188881), (31, 690318), (62, 345159), (93, 230106), (186, 115053), (279, 76702), (558, 38351)]