18801237

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 31386880

約数和(自身を除く): 12585643

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 183, 273, 427, 793, 1129, 1281, 2379, 3387, 5551, 7903, 14677, 16653, 23709, 44031, 68869, 102739, 206607, 308217, 482083, 895297, 1446249, 2685891, 6267079, 18801237]

約数ペア:

[(1, 18801237), (3, 6267079), (7, 2685891), (13, 1446249), (21, 895297), (39, 482083), (61, 308217), (91, 206607), (183, 102739), (273, 68869), (427, 44031), (793, 23709), (1129, 16653), (1281, 14677), (2379, 7903), (3387, 5551)]