18403887

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2447}}^1$

素因数の和:2582

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 7446993

約数列:

[1, 3, 23, 69, 109, 327, 2447, 2507, 7341, 7521, 56281, 168843, 266723, 800169, 6134629, 18403887]

約数ペア:

[(1, 18403887), (3, 6134629), (23, 800169), (69, 266723), (109, 168843), (327, 56281), (2447, 7521), (2507, 7341)]