21247020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2879}}^1$

素因数の和:2935

約数の個数: 72

約数和(自身を含む): 66044160

約数和(自身を除く): 44797140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2879, 3690, 5758, 7380, 8637, 11516, 14395, 17274, 25911, 28790, 34548, 43185, 51822, 57580, 86370, 103644, 118039, 129555, 172740, 236078, 259110, 354117, 472156, 518220, 590195, 708234, 1062351, 1180390, 1416468, 1770585, 2124702, 2360780, 3541170, 4249404, 5311755, 7082340, 10623510, 21247020]

約数ペア:

[(1, 21247020), (2, 10623510), (3, 7082340), (4, 5311755), (5, 4249404), (6, 3541170), (9, 2360780), (10, 2124702), (12, 1770585), (15, 1416468), (18, 1180390), (20, 1062351), (30, 708234), (36, 590195), (41, 518220), (45, 472156), (60, 354117), (82, 259110), (90, 236078), (123, 172740), (164, 129555), (180, 118039), (205, 103644), (246, 86370), (369, 57580), (410, 51822), (492, 43185), (615, 34548), (738, 28790), (820, 25911), (1230, 17274), (1476, 14395), (1845, 11516), (2460, 8637), (2879, 7380), (3690, 5758)]