20852425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 28426752

約数和(自身を除く): 7574327

約数列:

[1, 5, 11, 25, 55, 191, 275, 397, 955, 1985, 2101, 4367, 4775, 9925, 10505, 21835, 52525, 75827, 109175, 379135, 834097, 1895675, 4170485, 20852425]

約数ペア:

[(1, 20852425), (5, 4170485), (11, 1895675), (25, 834097), (55, 379135), (191, 109175), (275, 75827), (397, 52525), (955, 21835), (1985, 10505), (2101, 9925), (4367, 4775)]