19305993

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39971}}^1$

素因数の和:40004

約数の個数: 16

約数和(自身を含む): 30698496

約数和(自身を除く): 11392503

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 39971, 119913, 279797, 839391, 919333, 2757999, 6435331, 19305993]

約数ペア:

[(1, 19305993), (3, 6435331), (7, 2757999), (21, 919333), (23, 839391), (69, 279797), (161, 119913), (483, 39971)]