21728820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{362147}}^1$

素因数の和:362159

約数の個数: 24

約数和(自身を含む): 60840864

約数和(自身を除く): 39112044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 362147, 724294, 1086441, 1448588, 1810735, 2172882, 3621470, 4345764, 5432205, 7242940, 10864410, 21728820]

約数ペア:

[(1, 21728820), (2, 10864410), (3, 7242940), (4, 5432205), (5, 4345764), (6, 3621470), (10, 2172882), (12, 1810735), (15, 1448588), (20, 1086441), (30, 724294), (60, 362147)]