18948601

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 22434048

約数和(自身を除く): 3485447

約数列:

[1, 7, 41, 103, 287, 641, 721, 4223, 4487, 26281, 29561, 66023, 183967, 462161, 2706943, 18948601]

約数ペア:

[(1, 18948601), (7, 2706943), (41, 462161), (103, 183967), (287, 66023), (641, 29561), (721, 26281), (4223, 4487)]