21481740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5683}}^1$

素因数の和:5708

約数の個数: 96

約数和(自身を含む): 76392960

約数和(自身を除く): 54911220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5683, 11366, 17049, 22732, 28415, 34098, 39781, 51147, 56830, 68196, 79562, 85245, 102294, 113660, 119343, 153441, 159124, 170490, 198905, 204588, 238686, 255735, 306882, 340980, 358029, 397810, 477372, 511470, 596715, 613764, 716058, 767205, 795620, 1022940, 1074087, 1193430, 1432116, 1534410, 1790145, 2148174, 2386860, 3068820, 3580290, 4296348, 5370435, 7160580, 10740870, 21481740]

約数ペア:

[(1, 21481740), (2, 10740870), (3, 7160580), (4, 5370435), (5, 4296348), (6, 3580290), (7, 3068820), (9, 2386860), (10, 2148174), (12, 1790145), (14, 1534410), (15, 1432116), (18, 1193430), (20, 1074087), (21, 1022940), (27, 795620), (28, 767205), (30, 716058), (35, 613764), (36, 596715), (42, 511470), (45, 477372), (54, 397810), (60, 358029), (63, 340980), (70, 306882), (84, 255735), (90, 238686), (105, 204588), (108, 198905), (126, 170490), (135, 159124), (140, 153441), (180, 119343), (189, 113660), (210, 102294), (252, 85245), (270, 79562), (315, 68196), (378, 56830), (420, 51147), (540, 39781), (630, 34098), (756, 28415), (945, 22732), (1260, 17049), (1890, 11366), (3780, 5683)]