20389464

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{6907}}^1$

素因数の和:6960

約数の個数: 48

約数和(自身を含む): 56576520

約数和(自身を除く): 36187056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 72, 82, 123, 164, 246, 328, 369, 492, 738, 984, 1476, 2952, 6907, 13814, 20721, 27628, 41442, 55256, 62163, 82884, 124326, 165768, 248652, 283187, 497304, 566374, 849561, 1132748, 1699122, 2265496, 2548683, 3398244, 5097366, 6796488, 10194732, 20389464]

約数ペア:

[(1, 20389464), (2, 10194732), (3, 6796488), (4, 5097366), (6, 3398244), (8, 2548683), (9, 2265496), (12, 1699122), (18, 1132748), (24, 849561), (36, 566374), (41, 497304), (72, 283187), (82, 248652), (123, 165768), (164, 124326), (246, 82884), (328, 62163), (369, 55256), (492, 41442), (738, 27628), (984, 20721), (1476, 13814), (2952, 6907)]