21323020

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3221}}^1$

素因数の和:3561

約数の個数: 24

約数和(自身を含む): 44927568

約数和(自身を除く): 23604548

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3221, 3310, 6442, 6620, 12884, 16105, 32210, 64420, 1066151, 2132302, 4264604, 5330755, 10661510, 21323020]

約数ペア:

[(1, 21323020), (2, 10661510), (4, 5330755), (5, 4264604), (10, 2132302), (20, 1066151), (331, 64420), (662, 32210), (1324, 16105), (1655, 12884), (3221, 6620), (3310, 6442)]