18930177

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{617}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 31364736

約数和(自身を除く): 12434559

約数列:

[1, 3, 7, 9, 21, 63, 487, 617, 1461, 1851, 3409, 4319, 4383, 5553, 10227, 12957, 30681, 38871, 300479, 901437, 2103353, 2704311, 6310059, 18930177]

約数ペア:

[(1, 18930177), (3, 6310059), (7, 2704311), (9, 2103353), (21, 901437), (63, 300479), (487, 38871), (617, 30681), (1461, 12957), (1851, 10227), (3409, 5553), (4319, 4383)]