21015533

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5807}}^1$

素因数の和:5872

約数の個数: 16

約数和(自身を含む): 26763264

約数和(自身を除く): 5747731

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5807, 40649, 63877, 272929, 447139, 1910503, 3002219, 21015533]

約数ペア:

[(1, 21015533), (7, 3002219), (11, 1910503), (47, 447139), (77, 272929), (329, 63877), (517, 40649), (3619, 5807)]