21450500

素因数分解:

$2^2\times 5^3\times {\mathrm{42901}}^1$

素因数の和:42920

約数の個数: 24

約数和(自身を含む): 46848984

約数和(自身を除く): 25398484

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42901, 85802, 171604, 214505, 429010, 858020, 1072525, 2145050, 4290100, 5362625, 10725250, 21450500]

約数ペア:

[(1, 21450500), (2, 10725250), (4, 5362625), (5, 4290100), (10, 2145050), (20, 1072525), (25, 858020), (50, 429010), (100, 214505), (125, 171604), (250, 85802), (500, 42901)]