21147510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8923}}^1$

素因数の和:9012

約数の個数: 32

約数和(自身を含む): 51402240

約数和(自身を除く): 30254730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8923, 17846, 26769, 44615, 53538, 89230, 133845, 267690, 704917, 1409834, 2114751, 3524585, 4229502, 7049170, 10573755, 21147510]

約数ペア:

[(1, 21147510), (2, 10573755), (3, 7049170), (5, 4229502), (6, 3524585), (10, 2114751), (15, 1409834), (30, 704917), (79, 267690), (158, 133845), (237, 89230), (395, 53538), (474, 44615), (790, 26769), (1185, 17846), (2370, 8923)]