18993123

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{1663}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 29073408

約数和(自身を除く): 10080285

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 1663, 3807, 4989, 11421, 14967, 44901, 78161, 134703, 234483, 404109, 703449, 2110347, 6331041, 18993123]

約数ペア:

[(1, 18993123), (3, 6331041), (9, 2110347), (27, 703449), (47, 404109), (81, 234483), (141, 134703), (243, 78161), (423, 44901), (1269, 14967), (1663, 11421), (3807, 4989)]