21423105

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{383}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 40974336

約数和(自身を除く): 19551231

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 113, 165, 339, 383, 495, 565, 1017, 1149, 1243, 1695, 1915, 3447, 3729, 4213, 5085, 5745, 6215, 11187, 12639, 17235, 18645, 21065, 37917, 43279, 55935, 63195, 129837, 189585, 216395, 389511, 476069, 649185, 1428207, 1947555, 2380345, 4284621, 7141035, 21423105]

約数ペア:

[(1, 21423105), (3, 7141035), (5, 4284621), (9, 2380345), (11, 1947555), (15, 1428207), (33, 649185), (45, 476069), (55, 389511), (99, 216395), (113, 189585), (165, 129837), (339, 63195), (383, 55935), (495, 43279), (565, 37917), (1017, 21065), (1149, 18645), (1243, 17235), (1695, 12639), (1915, 11187), (3447, 6215), (3729, 5745), (4213, 5085)]