21914781

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6911}}^1$

素因数の和:7072

約数の個数: 16

約数和(自身を含む): 33619968

約数和(自身を除く): 11705187

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6911, 20733, 48377, 145131, 1043561, 3130683, 7304927, 21914781]

約数ペア:

[(1, 21914781), (3, 7304927), (7, 3130683), (21, 1043561), (151, 145131), (453, 48377), (1057, 20733), (3171, 6911)]