18905397

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{9281}}^1$

素因数の和:9388

約数の個数: 16

約数和(自身を含む): 29108352

約数和(自身を除く): 10202955

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 9281, 27843, 64967, 194901, 900257, 2700771, 6301799, 18905397]

約数ペア:

[(1, 18905397), (3, 6301799), (7, 2700771), (21, 900257), (97, 194901), (291, 64967), (679, 27843), (2037, 9281)]