20996987207

素因数分解:

$7^2\times {\mathrm{227}}^1\times {\mathrm{1321}}^1\times {\mathrm{1429}}^1$

素因数の和:2991

約数の個数: 24

約数和(自身を含む): 24568418160

約数和(自身を除く): 3571430953

約数列:

[1, 7, 49, 227, 1321, 1429, 1589, 9247, 10003, 11123, 64729, 70021, 299867, 324383, 1887709, 2099069, 2270681, 13213963, 14693483, 15894767, 92497741, 428509943, 2999569601, 20996987207]

約数ペア:

[(1, 20996987207), (7, 2999569601), (49, 428509943), (227, 92497741), (1321, 15894767), (1429, 14693483), (1589, 13213963), (9247, 2270681), (10003, 2099069), (11123, 1887709), (64729, 324383), (70021, 299867)]