18902121

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6871}}^1$

素因数の和:7012

約数の個数: 16

約数和(自身を含む): 29027328

約数和(自身を除く): 10125207

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 6871, 20613, 48097, 144291, 900101, 2700303, 6300707, 18902121]

約数ペア:

[(1, 18902121), (3, 6300707), (7, 2700303), (21, 900101), (131, 144291), (393, 48097), (917, 20613), (2751, 6871)]