31998321

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{9187}}^1$

素因数の和:9242

約数の個数: 20

約数和(自身を含む): 48916912

約数和(自身を除く): 16918591

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 9187, 27561, 82683, 248049, 395041, 744147, 1185123, 3555369, 10666107, 31998321]

約数ペア:

[(1, 31998321), (3, 10666107), (9, 3555369), (27, 1185123), (43, 744147), (81, 395041), (129, 248049), (387, 82683), (1161, 27561), (3483, 9187)]