662643

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 1044576

約数和(自身を除く): 381933

約数列:

[1, 3, 9, 17, 51, 61, 71, 153, 183, 213, 549, 639, 1037, 1207, 3111, 3621, 4331, 9333, 10863, 12993, 38979, 73627, 220881, 662643]

約数ペア:

[(1, 662643), (3, 220881), (9, 73627), (17, 38979), (51, 12993), (61, 10863), (71, 9333), (153, 4331), (183, 3621), (213, 3111), (549, 1207), (639, 1037)]