21771660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3329}}^1$

素因数の和:3450

約数の個数: 48

約数和(自身を含む): 61538400

約数和(自身を除く): 39766740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3270, 3329, 6540, 6658, 9987, 13316, 16645, 19974, 33290, 39948, 49935, 66580, 99870, 199740, 362861, 725722, 1088583, 1451444, 1814305, 2177166, 3628610, 4354332, 5442915, 7257220, 10885830, 21771660]

約数ペア:

[(1, 21771660), (2, 10885830), (3, 7257220), (4, 5442915), (5, 4354332), (6, 3628610), (10, 2177166), (12, 1814305), (15, 1451444), (20, 1088583), (30, 725722), (60, 362861), (109, 199740), (218, 99870), (327, 66580), (436, 49935), (545, 39948), (654, 33290), (1090, 19974), (1308, 16645), (1635, 13316), (2180, 9987), (3270, 6658), (3329, 6540)]