21259740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354329}}^1$

素因数の和:354341

約数の個数: 24

約数和(自身を含む): 59527440

約数和(自身を除く): 38267700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354329, 708658, 1062987, 1417316, 1771645, 2125974, 3543290, 4251948, 5314935, 7086580, 10629870, 21259740]

約数ペア:

[(1, 21259740), (2, 10629870), (3, 7086580), (4, 5314935), (5, 4251948), (6, 3543290), (10, 2125974), (12, 1771645), (15, 1417316), (20, 1062987), (30, 708658), (60, 354329)]