20971066

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{827}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 32590080

約数和(自身を除く): 11619014

約数列:

[1, 2, 31, 62, 409, 818, 827, 1654, 12679, 25358, 25637, 51274, 338243, 676486, 10485533, 20971066]

約数ペア:

[(1, 20971066), (2, 10485533), (31, 676486), (62, 338243), (409, 51274), (818, 25637), (827, 25358), (1654, 12679)]