21721302

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{11071}}^1$

素因数の和:11188

約数の個数: 24

約数和(自身を含む): 47498880

約数和(自身を除く): 25777578

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 1962, 11071, 22142, 33213, 66426, 99639, 199278, 1206739, 2413478, 3620217, 7240434, 10860651, 21721302]

約数ペア:

[(1, 21721302), (2, 10860651), (3, 7240434), (6, 3620217), (9, 2413478), (18, 1206739), (109, 199278), (218, 99639), (327, 66426), (654, 33213), (981, 22142), (1962, 11071)]