21308132157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{2473}}^1\times {\mathrm{220931}}^1$

素因数の和:223420

約数の個数: 16

約数和(自身を含む): 30608803008

約数和(自身を除く): 9300670851

約数列:

[1, 3, 13, 39, 2473, 7419, 32149, 96447, 220931, 662793, 2872103, 8616309, 546362363, 1639087089, 7102710719, 21308132157]

約数ペア:

[(1, 21308132157), (3, 7102710719), (13, 1639087089), (39, 546362363), (2473, 8616309), (7419, 2872103), (32149, 662793), (96447, 220931)]