21406927857

素因数分解:

$3^1\times 7^1\times {\mathrm{773}}^1\times {\mathrm{1318729}}^1$

素因数の和:1319512

約数の個数: 16

約数和(自身を含む): 32662304640

約数和(自身を除く): 11255376783

約数列:

[1, 3, 7, 21, 773, 2319, 5411, 16233, 1318729, 3956187, 9231103, 27693309, 1019377517, 3058132551, 7135642619, 21406927857]

約数ペア:

[(1, 21406927857), (3, 7135642619), (7, 3058132551), (21, 1019377517), (773, 27693309), (2319, 9231103), (5411, 3956187), (16233, 1318729)]