21126960

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9781}}^1$

素因数の和:9803

約数の個数: 80

約数和(自身を含む): 72778080

約数和(自身を除く): 51651120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9781, 19562, 29343, 39124, 48905, 58686, 78248, 88029, 97810, 117372, 146715, 156496, 176058, 195620, 234744, 264087, 293430, 352116, 391240, 440145, 469488, 528174, 586860, 704232, 782480, 880290, 1056348, 1173720, 1320435, 1408464, 1760580, 2112696, 2347440, 2640870, 3521160, 4225392, 5281740, 7042320, 10563480, 21126960]

約数ペア:

[(1, 21126960), (2, 10563480), (3, 7042320), (4, 5281740), (5, 4225392), (6, 3521160), (8, 2640870), (9, 2347440), (10, 2112696), (12, 1760580), (15, 1408464), (16, 1320435), (18, 1173720), (20, 1056348), (24, 880290), (27, 782480), (30, 704232), (36, 586860), (40, 528174), (45, 469488), (48, 440145), (54, 391240), (60, 352116), (72, 293430), (80, 264087), (90, 234744), (108, 195620), (120, 176058), (135, 156496), (144, 146715), (180, 117372), (216, 97810), (240, 88029), (270, 78248), (360, 58686), (432, 48905), (540, 39124), (720, 29343), (1080, 19562), (2160, 9781)]