21987331386

素因数分解:

$2^1\times 3^1\times {\mathrm{2707}}^1\times {\mathrm{1353733}}^1$

素因数の和:1356445

約数の個数: 16

約数和(自身を含む): 43990940064

約数和(自身を除く): 22003608678

約数列:

[1, 2, 3, 6, 2707, 5414, 8121, 16242, 1353733, 2707466, 4061199, 8122398, 3664555231, 7329110462, 10993665693, 21987331386]

約数ペア:

[(1, 21987331386), (2, 10993665693), (3, 7329110462), (6, 3664555231), (2707, 8122398), (5414, 4061199), (8121, 2707466), (16242, 1353733)]