20199445

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18617}}^1$

素因数の和:18660

約数の個数: 16

約数和(自身を含む): 28597248

約数和(自身を除く): 8397803

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18617, 93085, 130319, 577127, 651595, 2885635, 4039889, 20199445]

約数ペア:

[(1, 20199445), (5, 4039889), (7, 2885635), (31, 651595), (35, 577127), (155, 130319), (217, 93085), (1085, 18617)]