21098050

素因数分解:

$2^1\times 5^2\times {\mathrm{509}}^1\times {\mathrm{829}}^1$

素因数の和:1350

約数の個数: 24

約数和(自身を含む): 39366900

約数和(自身を除く): 18268850

約数列:

[1, 2, 5, 10, 25, 50, 509, 829, 1018, 1658, 2545, 4145, 5090, 8290, 12725, 20725, 25450, 41450, 421961, 843922, 2109805, 4219610, 10549025, 21098050]

約数ペア:

[(1, 21098050), (2, 10549025), (5, 4219610), (10, 2109805), (25, 843922), (50, 421961), (509, 41450), (829, 25450), (1018, 20725), (1658, 12725), (2545, 8290), (4145, 5090)]