21891570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{729719}}^1$

素因数の和:729729

約数の個数: 16

約数和(自身を含む): 52539840

約数和(自身を除く): 30648270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 729719, 1459438, 2189157, 3648595, 4378314, 7297190, 10945785, 21891570]

約数ペア:

[(1, 21891570), (2, 10945785), (3, 7297190), (5, 4378314), (6, 3648595), (10, 2189157), (15, 1459438), (30, 729719)]