21020996898

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3660919}}^1$

素因数の和:3660967

約数の個数: 48

約数和(自身を含む): 51399316800

約数和(自身を除く): 30378319902

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 174, 198, 261, 319, 522, 638, 957, 1914, 2871, 5742, 3660919, 7321838, 10982757, 21965514, 32948271, 40270109, 65896542, 80540218, 106166651, 120810327, 212333302, 241620654, 318499953, 362430981, 636999906, 724861962, 955499859, 1167833161, 1910999718, 2335666322, 3503499483, 7006998966, 10510498449, 21020996898]

約数ペア:

[(1, 21020996898), (2, 10510498449), (3, 7006998966), (6, 3503499483), (9, 2335666322), (11, 1910999718), (18, 1167833161), (22, 955499859), (29, 724861962), (33, 636999906), (58, 362430981), (66, 318499953), (87, 241620654), (99, 212333302), (174, 120810327), (198, 106166651), (261, 80540218), (319, 65896542), (522, 40270109), (638, 32948271), (957, 21965514), (1914, 10982757), (2871, 7321838), (5742, 3660919)]