20926705

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1709}}^1$

素因数の和:1824

約数の個数: 16

約数和(自身を含む): 26265600

約数和(自身を除く): 5338895

約数列:

[1, 5, 31, 79, 155, 395, 1709, 2449, 8545, 12245, 52979, 135011, 264895, 675055, 4185341, 20926705]

約数ペア:

[(1, 20926705), (5, 4185341), (31, 675055), (79, 264895), (155, 135011), (395, 52979), (1709, 12245), (2449, 8545)]