21289575275

素因数分解:

$5^2\times {\mathrm{251}}^1\times {\mathrm{1213}}^1\times {\mathrm{2797}}^1$

素因数の和:4271

約数の個数: 24

約数和(自身を含む): 26535582864

約数和(自身を除く): 5246007589

約数列:

[1, 5, 25, 251, 1213, 1255, 2797, 6065, 6275, 13985, 30325, 69925, 304463, 702047, 1522315, 3392761, 3510235, 7611575, 16963805, 17551175, 84819025, 851583011, 4257915055, 21289575275]

約数ペア:

[(1, 21289575275), (5, 4257915055), (25, 851583011), (251, 84819025), (1213, 17551175), (1255, 16963805), (2797, 7611575), (6065, 3510235), (6275, 3392761), (13985, 1522315), (30325, 702047), (69925, 304463)]