21542340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{631}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 60520320

約数和(自身を除く): 38977980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 569, 631, 1138, 1262, 1707, 1893, 2276, 2524, 2845, 3155, 3414, 3786, 5690, 6310, 6828, 7572, 8535, 9465, 11380, 12620, 17070, 18930, 34140, 37860, 359039, 718078, 1077117, 1436156, 1795195, 2154234, 3590390, 4308468, 5385585, 7180780, 10771170, 21542340]

約数ペア:

[(1, 21542340), (2, 10771170), (3, 7180780), (4, 5385585), (5, 4308468), (6, 3590390), (10, 2154234), (12, 1795195), (15, 1436156), (20, 1077117), (30, 718078), (60, 359039), (569, 37860), (631, 34140), (1138, 18930), (1262, 17070), (1707, 12620), (1893, 11380), (2276, 9465), (2524, 8535), (2845, 7572), (3155, 6828), (3414, 6310), (3786, 5690)]