20119253

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 25800480

約数和(自身を除く): 5681227

約数列:

[1, 7, 11, 49, 77, 163, 229, 539, 1141, 1603, 1793, 2519, 7987, 11221, 12551, 17633, 37327, 87857, 123431, 261289, 410597, 1829023, 2874179, 20119253]

約数ペア:

[(1, 20119253), (7, 2874179), (11, 1829023), (49, 410597), (77, 261289), (163, 123431), (229, 87857), (539, 37327), (1141, 17633), (1603, 12551), (1793, 11221), (2519, 7987)]