21371645

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{929}}^1$

素因数の和:1084

約数の個数: 16

約数和(自身を含む): 26516160

約数和(自身を除く): 5144515

約数列:

[1, 5, 43, 107, 215, 535, 929, 4601, 4645, 23005, 39947, 99403, 199735, 497015, 4274329, 21371645]

約数ペア:

[(1, 21371645), (5, 4274329), (43, 497015), (107, 199735), (215, 99403), (535, 39947), (929, 23005), (4601, 4645)]