20657692

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12689}}^1$

素因数の和:12741

約数の個数: 24

約数和(自身を含む): 40506480

約数和(自身を除く): 19848788

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12689, 25378, 50756, 139579, 279158, 469493, 558316, 938986, 1877972, 5164423, 10328846, 20657692]

約数ペア:

[(1, 20657692), (2, 10328846), (4, 5164423), (11, 1877972), (22, 938986), (37, 558316), (44, 469493), (74, 279158), (148, 139579), (407, 50756), (814, 25378), (1628, 12689)]