21338105

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1627}}^1$

素因数の和:1736

約数の個数: 16

約数和(自身を含む): 26647104

約数和(自身を除く): 5308999

約数列:

[1, 5, 43, 61, 215, 305, 1627, 2623, 8135, 13115, 69961, 99247, 349805, 496235, 4267621, 21338105]

約数ペア:

[(1, 21338105), (5, 4267621), (43, 496235), (61, 349805), (215, 99247), (305, 69961), (1627, 13115), (2623, 8135)]