21552720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12829}}^1$

素因数の和:12852

約数の個数: 80

約数和(自身を含む): 76364160

約数和(自身を除く): 54811440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12829, 25658, 38487, 51316, 64145, 76974, 89803, 102632, 128290, 153948, 179606, 192435, 205264, 256580, 269409, 307896, 359212, 384870, 449015, 513160, 538818, 615792, 718424, 769740, 898030, 1026320, 1077636, 1347045, 1436848, 1539480, 1796060, 2155272, 2694090, 3078960, 3592120, 4310544, 5388180, 7184240, 10776360, 21552720]

約数ペア:

[(1, 21552720), (2, 10776360), (3, 7184240), (4, 5388180), (5, 4310544), (6, 3592120), (7, 3078960), (8, 2694090), (10, 2155272), (12, 1796060), (14, 1539480), (15, 1436848), (16, 1347045), (20, 1077636), (21, 1026320), (24, 898030), (28, 769740), (30, 718424), (35, 615792), (40, 538818), (42, 513160), (48, 449015), (56, 384870), (60, 359212), (70, 307896), (80, 269409), (84, 256580), (105, 205264), (112, 192435), (120, 179606), (140, 153948), (168, 128290), (210, 102632), (240, 89803), (280, 76974), (336, 64145), (420, 51316), (560, 38487), (840, 25658), (1680, 12829)]