18236878

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{421}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 30308040

約数和(自身を除く): 12071162

約数列:

[1, 2, 11, 22, 121, 179, 242, 358, 421, 842, 1969, 3938, 4631, 9262, 21659, 43318, 50941, 75359, 101882, 150718, 828949, 1657898, 9118439, 18236878]

約数ペア:

[(1, 18236878), (2, 9118439), (11, 1657898), (22, 828949), (121, 150718), (179, 101882), (242, 75359), (358, 50941), (421, 43318), (842, 21659), (1969, 9262), (3938, 4631)]