18240831

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2083}}^1$

素因数の和:2235

約数の個数: 24

約数和(自身を含む): 30343040

約数和(自身を除く): 12102209

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2083, 2919, 6249, 8757, 14581, 18747, 43743, 131229, 289537, 868611, 2026759, 2605833, 6080277, 18240831]

約数ペア:

[(1, 18240831), (3, 6080277), (7, 2605833), (9, 2026759), (21, 868611), (63, 289537), (139, 131229), (417, 43743), (973, 18747), (1251, 14581), (2083, 8757), (2919, 6249)]