27981961

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1151}}^1$

素因数の和:1332

約数の個数: 16

約数和(自身を含む): 33619968

約数和(自身を除く): 5638007

約数列:

[1, 7, 23, 151, 161, 1057, 1151, 3473, 8057, 24311, 26473, 173801, 185311, 1216607, 3997423, 27981961]

約数ペア:

[(1, 27981961), (7, 3997423), (23, 1216607), (151, 185311), (161, 173801), (1057, 26473), (1151, 24311), (3473, 8057)]