18630997

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 25242624

約数和(自身を除く): 6611627

約数列:

[1, 7, 11, 17, 43, 77, 119, 187, 301, 331, 473, 731, 1309, 2317, 3311, 3641, 5117, 5627, 8041, 14233, 25487, 39389, 56287, 61897, 99631, 156563, 241961, 433279, 1095941, 1693727, 2661571, 18630997]

約数ペア:

[(1, 18630997), (7, 2661571), (11, 1693727), (17, 1095941), (43, 433279), (77, 241961), (119, 156563), (187, 99631), (301, 61897), (331, 56287), (473, 39389), (731, 25487), (1309, 14233), (2317, 8041), (3311, 5627), (3641, 5117)]