20812383

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2887}}^1$

素因数の和:2988

約数の個数: 20

約数和(自身を含む): 31450320

約数和(自身を除く): 10637937

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2887, 7209, 8661, 25983, 77949, 233847, 256943, 770829, 2312487, 6937461, 20812383]

約数ペア:

[(1, 20812383), (3, 6937461), (9, 2312487), (27, 770829), (81, 256943), (89, 233847), (267, 77949), (801, 25983), (2403, 8661), (2887, 7209)]