21420814

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{7351}}^1$

素因数の和:7431

約数の個数: 16

約数和(自身を含む): 33878016

約数和(自身を除く): 12457202

約数列:

[1, 2, 31, 47, 62, 94, 1457, 2914, 7351, 14702, 227881, 345497, 455762, 690994, 10710407, 21420814]

約数ペア:

[(1, 21420814), (2, 10710407), (31, 690994), (47, 455762), (62, 345497), (94, 227881), (1457, 14702), (2914, 7351)]