21002860

素因数分解:

$2^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{1789}}^1$

素因数の和:2385

約数の個数: 24

約数和(自身を含む): 44205840

約数和(自身を除く): 23202980

約数列:

[1, 2, 4, 5, 10, 20, 587, 1174, 1789, 2348, 2935, 3578, 5870, 7156, 8945, 11740, 17890, 35780, 1050143, 2100286, 4200572, 5250715, 10501430, 21002860]

約数ペア:

[(1, 21002860), (2, 10501430), (4, 5250715), (5, 4200572), (10, 2100286), (20, 1050143), (587, 35780), (1174, 17890), (1789, 11740), (2348, 8945), (2935, 7156), (3578, 5870)]