21498564

素因数分解:

$2^2\times 3^1\times {\mathrm{257}}^1\times {\mathrm{6971}}^1$

素因数の和:7235

約数の個数: 24

約数和(自身を含む): 50365728

約数和(自身を除く): 28867164

約数列:

[1, 2, 3, 4, 6, 12, 257, 514, 771, 1028, 1542, 3084, 6971, 13942, 20913, 27884, 41826, 83652, 1791547, 3583094, 5374641, 7166188, 10749282, 21498564]

約数ペア:

[(1, 21498564), (2, 10749282), (3, 7166188), (4, 5374641), (6, 3583094), (12, 1791547), (257, 83652), (514, 41826), (771, 27884), (1028, 20913), (1542, 13942), (3084, 6971)]