18996978654

素因数分解:

$2^1\times 3^3\times {\mathrm{263}}^1\times {\mathrm{1337627}}^1$

素因数の和:1337901

約数の個数: 32

約数和(自身を含む): 42376055040

約数和(自身を除く): 23379076386

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 263, 526, 789, 1578, 2367, 4734, 7101, 14202, 1337627, 2675254, 4012881, 8025762, 12038643, 24077286, 36115929, 72231858, 351795901, 703591802, 1055387703, 2110775406, 3166163109, 6332326218, 9498489327, 18996978654]

約数ペア:

[(1, 18996978654), (2, 9498489327), (3, 6332326218), (6, 3166163109), (9, 2110775406), (18, 1055387703), (27, 703591802), (54, 351795901), (263, 72231858), (526, 36115929), (789, 24077286), (1578, 12038643), (2367, 8025762), (4734, 4012881), (7101, 2675254), (14202, 1337627)]