21715407

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11119}}^1$

素因数の和:11163

約数の個数: 24

約数和(自身を含む): 37007360

約数和(自身を除く): 15291953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 11119, 33357, 77833, 100071, 233499, 344689, 700497, 1034067, 2412823, 3102201, 7238469, 21715407]

約数ペア:

[(1, 21715407), (3, 7238469), (7, 3102201), (9, 2412823), (21, 1034067), (31, 700497), (63, 344689), (93, 233499), (217, 100071), (279, 77833), (651, 33357), (1953, 11119)]