21644485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1709}}^1$

素因数の和:1880

約数の個数: 16

約数和(自身を含む): 27702000

約数和(自身を除く): 6057515

約数列:

[1, 5, 17, 85, 149, 745, 1709, 2533, 8545, 12665, 29053, 145265, 254641, 1273205, 4328897, 21644485]

約数ペア:

[(1, 21644485), (5, 4328897), (17, 1273205), (85, 254641), (149, 145265), (745, 29053), (1709, 12665), (2533, 8545)]