19617381

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2377}}^1$

素因数の和:2521

約数の個数: 24

約数和(自身を含む): 32645184

約数和(自身を除く): 13027803

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2377, 2751, 7131, 8253, 16639, 21393, 49917, 149751, 311387, 934161, 2179709, 2802483, 6539127, 19617381]

約数ペア:

[(1, 19617381), (3, 6539127), (7, 2802483), (9, 2179709), (21, 934161), (63, 311387), (131, 149751), (393, 49917), (917, 21393), (1179, 16639), (2377, 8253), (2751, 7131)]