21700516

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 38765664

約数和(自身を除く): 17065148

約数列:

[1, 2, 4, 83, 163, 166, 326, 332, 401, 652, 802, 1604, 13529, 27058, 33283, 54116, 65363, 66566, 130726, 133132, 261452, 5425129, 10850258, 21700516]

約数ペア:

[(1, 21700516), (2, 10850258), (4, 5425129), (83, 261452), (163, 133132), (166, 130726), (326, 66566), (332, 65363), (401, 54116), (652, 33283), (802, 27058), (1604, 13529)]