21150305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1609}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 6670495

約数列:

[1, 5, 11, 55, 239, 1195, 1609, 2629, 8045, 13145, 17699, 88495, 384551, 1922755, 4230061, 21150305]

約数ペア:

[(1, 21150305), (5, 4230061), (11, 1922755), (55, 384551), (239, 88495), (1195, 17699), (1609, 13145), (2629, 8045)]