18989850939

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1\times {\mathrm{2999}}^1$

素因数の和:3751

約数の個数: 32

約数和(自身を含む): 26638848000

約数和(自身を除く): 7648997061

約数列:

[1, 3, 23, 69, 163, 489, 563, 1689, 2999, 3749, 8997, 11247, 12949, 38847, 68977, 91769, 206931, 275307, 488837, 1466511, 1688437, 2110687, 5065311, 6332061, 11243251, 33729753, 38834051, 116502153, 275215231, 825645693, 6329950313, 18989850939]

約数ペア:

[(1, 18989850939), (3, 6329950313), (23, 825645693), (69, 275215231), (163, 116502153), (489, 38834051), (563, 33729753), (1689, 11243251), (2999, 6332061), (3749, 5065311), (8997, 2110687), (11247, 1688437), (12949, 1466511), (38847, 488837), (68977, 275307), (91769, 206931)]