20721450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{138143}}^1$

素因数の和:138158

約数の個数: 24

約数和(自身を含む): 51389568

約数和(自身を除く): 30668118

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 138143, 276286, 414429, 690715, 828858, 1381430, 2072145, 3453575, 4144290, 6907150, 10360725, 20721450]

約数ペア:

[(1, 20721450), (2, 10360725), (3, 6907150), (5, 4144290), (6, 3453575), (10, 2072145), (15, 1381430), (25, 828858), (30, 690715), (50, 414429), (75, 276286), (150, 138143)]