20306839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2503}}^1$

素因数の和:2590

約数の個数: 16

約数和(自身を含む): 24839680

約数和(自身を除く): 4532841

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2503, 8113, 17521, 47557, 152683, 332899, 1068781, 2900977, 20306839]

約数ペア:

[(1, 20306839), (7, 2900977), (19, 1068781), (61, 332899), (133, 152683), (427, 47557), (1159, 17521), (2503, 8113)]