21157292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1621}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 40056912

約数和(自身を除く): 18899620

約数列:

[1, 2, 4, 13, 26, 52, 251, 502, 1004, 1621, 3242, 3263, 6484, 6526, 13052, 21073, 42146, 84292, 406871, 813742, 1627484, 5289323, 10578646, 21157292]

約数ペア:

[(1, 21157292), (2, 10578646), (4, 5289323), (13, 1627484), (26, 813742), (52, 406871), (251, 84292), (502, 42146), (1004, 21073), (1621, 13052), (3242, 6526), (3263, 6484)]