21757684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1667}}^1$

素因数の和:1935

約数の個数: 24

約数和(自身を含む): 41192928

約数和(自身を除く): 19435244

約数列:

[1, 2, 4, 13, 26, 52, 251, 502, 1004, 1667, 3263, 3334, 6526, 6668, 13052, 21671, 43342, 86684, 418417, 836834, 1673668, 5439421, 10878842, 21757684]

約数ペア:

[(1, 21757684), (2, 10878842), (4, 5439421), (13, 1673668), (26, 836834), (52, 418417), (251, 86684), (502, 43342), (1004, 21671), (1667, 13052), (3263, 6668), (3334, 6526)]