18647406

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 42260400

約数和(自身を除く): 23612994

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 139, 174, 257, 261, 278, 417, 514, 522, 771, 834, 1251, 1542, 2313, 2502, 4031, 4626, 7453, 8062, 12093, 14906, 22359, 24186, 35723, 36279, 44718, 67077, 71446, 72558, 107169, 134154, 214338, 321507, 643014, 1035967, 2071934, 3107901, 6215802, 9323703, 18647406]

約数ペア:

[(1, 18647406), (2, 9323703), (3, 6215802), (6, 3107901), (9, 2071934), (18, 1035967), (29, 643014), (58, 321507), (87, 214338), (139, 134154), (174, 107169), (257, 72558), (261, 71446), (278, 67077), (417, 44718), (514, 36279), (522, 35723), (771, 24186), (834, 22359), (1251, 14906), (1542, 12093), (2313, 8062), (2502, 7453), (4031, 4626)]