18315213

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3911}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 28041216

約数和(自身を除く): 9726003

約数列:

[1, 3, 7, 21, 223, 669, 1561, 3911, 4683, 11733, 27377, 82131, 872153, 2616459, 6105071, 18315213]

約数ペア:

[(1, 18315213), (3, 6105071), (7, 2616459), (21, 872153), (223, 82131), (669, 27377), (1561, 11733), (3911, 4683)]