21884891

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{751}}^1$

素因数の和:962

約数の個数: 16

約数和(自身を含む): 26277888

約数和(自身を除く): 4392997

約数列:

[1, 7, 23, 161, 181, 751, 1267, 4163, 5257, 17273, 29141, 120911, 135931, 951517, 3126413, 21884891]

約数ペア:

[(1, 21884891), (7, 3126413), (23, 951517), (161, 135931), (181, 120911), (751, 29141), (1267, 17273), (4163, 5257)]