19668020

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2971}}^1$

素因数の和:3311

約数の個数: 24

約数和(自身を含む): 41441568

約数和(自身を除く): 21773548

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 2971, 3310, 5942, 6620, 11884, 14855, 29710, 59420, 983401, 1966802, 3933604, 4917005, 9834010, 19668020]

約数ペア:

[(1, 19668020), (2, 9834010), (4, 4917005), (5, 3933604), (10, 1966802), (20, 983401), (331, 59420), (662, 29710), (1324, 14855), (1655, 11884), (2971, 6620), (3310, 5942)]