216912555

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{12923}}^1$

素因数の和:13307

約数の個数: 24

約数和(自身を含む): 377018928

約数和(自身を除く): 160106373

約数列:

[1, 3, 5, 9, 15, 45, 373, 1119, 1865, 3357, 5595, 12923, 16785, 38769, 64615, 116307, 193845, 581535, 4820279, 14460837, 24101395, 43382511, 72304185, 216912555]

約数ペア:

[(1, 216912555), (3, 72304185), (5, 43382511), (9, 24101395), (15, 14460837), (45, 4820279), (373, 581535), (1119, 193845), (1865, 116307), (3357, 64615), (5595, 38769), (12923, 16785)]