17971891

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{829}}^1$

素因数の和:1018

約数の個数: 16

約数和(自身を含む): 21779200

約数和(自身を除く): 3807309

約数列:

[1, 7, 19, 133, 163, 829, 1141, 3097, 5803, 15751, 21679, 110257, 135127, 945889, 2567413, 17971891]

約数ペア:

[(1, 17971891), (7, 2567413), (19, 945889), (133, 135127), (163, 110257), (829, 21679), (1141, 15751), (3097, 5803)]