19888239

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23099}}^1$

素因数の和:23150

約数の個数: 16

約数和(自身を含む): 31046400

約数和(自身を除く): 11158161

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23099, 69297, 161693, 485079, 947059, 2841177, 6629413, 19888239]

約数ペア:

[(1, 19888239), (3, 6629413), (7, 2841177), (21, 947059), (41, 485079), (123, 161693), (287, 69297), (861, 23099)]