21525201

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 32058624

約数和(自身を除く): 10533423

約数列:

[1, 3, 9, 47, 141, 151, 337, 423, 453, 1011, 1359, 3033, 7097, 15839, 21291, 47517, 50887, 63873, 142551, 152661, 457983, 2391689, 7175067, 21525201]

約数ペア:

[(1, 21525201), (3, 7175067), (9, 2391689), (47, 457983), (141, 152661), (151, 142551), (337, 63873), (423, 50887), (453, 47517), (1011, 21291), (1359, 15839), (3033, 7097)]