20934991

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11821}}^1$

素因数の和:11862

約数の個数: 16

約数和(自身を含む): 27237888

約数和(自身を除く): 6302897

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11821, 82747, 130031, 271883, 910217, 1903181, 2990713, 20934991]

約数ペア:

[(1, 20934991), (7, 2990713), (11, 1903181), (23, 910217), (77, 271883), (161, 130031), (253, 82747), (1771, 11821)]