19516660

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1873}}^1$

素因数の和:2403

約数の個数: 24

約数和(自身を含む): 41085576

約数和(自身を除く): 21568916

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 1873, 2084, 2605, 3746, 5210, 7492, 9365, 10420, 18730, 37460, 975833, 1951666, 3903332, 4879165, 9758330, 19516660]

約数ペア:

[(1, 19516660), (2, 9758330), (4, 4879165), (5, 3903332), (10, 1951666), (20, 975833), (521, 37460), (1042, 18730), (1873, 10420), (2084, 9365), (2605, 7492), (3746, 5210)]