18777627

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 36

約数和(自身を含む): 30582552

約数和(自身を除く): 11804925

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 401, 473, 1089, 1203, 1419, 3609, 4257, 4411, 5203, 13233, 15609, 17243, 39699, 46827, 48521, 51729, 145563, 155187, 189673, 436689, 569019, 1707057, 2086403, 6259209, 18777627]

約数ペア:

[(1, 18777627), (3, 6259209), (9, 2086403), (11, 1707057), (33, 569019), (43, 436689), (99, 189673), (121, 155187), (129, 145563), (363, 51729), (387, 48521), (401, 46827), (473, 39699), (1089, 17243), (1203, 15609), (1419, 13233), (3609, 5203), (4257, 4411)]