20189528121

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13540931}}^1$

素因数の和:13541012

約数の個数: 16

約数和(自身を含む): 31198307328

約数和(自身を除く): 11008779207

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13540931, 40622793, 94786517, 284359551, 961406101, 2884218303, 6729842707, 20189528121]

約数ペア:

[(1, 20189528121), (3, 6729842707), (7, 2884218303), (21, 961406101), (71, 284359551), (213, 94786517), (497, 40622793), (1491, 13540931)]