21371216

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22639}}^1$

素因数の和:22706

約数の個数: 20

約数和(自身を含む): 42110400

約数和(自身を除く): 20739184

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22639, 45278, 90556, 181112, 362224, 1335701, 2671402, 5342804, 10685608, 21371216]

約数ペア:

[(1, 21371216), (2, 10685608), (4, 5342804), (8, 2671402), (16, 1335701), (59, 362224), (118, 181112), (236, 90556), (472, 45278), (944, 22639)]