21677525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 28164864

約数和(自身を除く): 6487339

約数列:

[1, 5, 25, 31, 83, 155, 337, 415, 775, 1685, 2075, 2573, 8425, 10447, 12865, 27971, 52235, 64325, 139855, 261175, 699275, 867101, 4335505, 21677525]

約数ペア:

[(1, 21677525), (5, 4335505), (25, 867101), (31, 699275), (83, 261175), (155, 139855), (337, 64325), (415, 52235), (775, 27971), (1685, 12865), (2075, 10447), (2573, 8425)]