21536207

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 5420593

約数列:

[1, 7, 11, 77, 389, 719, 2723, 4279, 5033, 7909, 29953, 55363, 279691, 1957837, 3076601, 21536207]

約数ペア:

[(1, 21536207), (7, 3076601), (11, 1957837), (77, 279691), (389, 55363), (719, 29953), (2723, 7909), (4279, 5033)]