18400391

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:382

約数の個数: 16

約数和(自身を含む): 20072448

約数和(自身を除く): 1672057

約数列:

[1, 23, 31, 131, 197, 713, 3013, 4061, 4531, 6107, 25807, 93403, 140461, 593561, 800017, 18400391]

約数ペア:

[(1, 18400391), (23, 800017), (31, 593561), (131, 140461), (197, 93403), (713, 25807), (3013, 6107), (4061, 4531)]