18880263

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{30403}}^1$

素因数の和:30435

約数の個数: 16

約数和(自身を含む): 29187840

約数和(自身を除く): 10307577

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 30403, 91209, 273627, 699269, 820881, 2097807, 6293421, 18880263]

約数ペア:

[(1, 18880263), (3, 6293421), (9, 2097807), (23, 820881), (27, 699269), (69, 273627), (207, 91209), (621, 30403)]