21998260

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3323}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 46349856

約数和(自身を除く): 24351596

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 3323, 6620, 6646, 13292, 16615, 33230, 66460, 1099913, 2199826, 4399652, 5499565, 10999130, 21998260]

約数ペア:

[(1, 21998260), (2, 10999130), (4, 5499565), (5, 4399652), (10, 2199826), (20, 1099913), (331, 66460), (662, 33230), (1324, 16615), (1655, 13292), (3310, 6646), (3323, 6620)]