21186051

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1451}}^1$

素因数の和:1642

約数の個数: 16

約数和(自身を含む): 29365248

約数和(自身を除く): 8179197

約数列:

[1, 3, 31, 93, 157, 471, 1451, 4353, 4867, 14601, 44981, 134943, 227807, 683421, 7062017, 21186051]

約数ペア:

[(1, 21186051), (3, 7062017), (31, 683421), (93, 227807), (157, 134943), (471, 44981), (1451, 14601), (4353, 4867)]