20215173867

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1555133}}^1$

素因数の和:1555762

約数の個数: 16

約数和(自身を含む): 30853858560

約数和(自身を除く): 10638684693

約数列:

[1, 3, 7, 21, 619, 1857, 4333, 12999, 1555133, 4665399, 10885931, 32657793, 962627327, 2887881981, 6738391289, 20215173867]

約数ペア:

[(1, 20215173867), (3, 6738391289), (7, 2887881981), (21, 962627327), (619, 32657793), (1857, 10885931), (4333, 4665399), (12999, 1555133)]