20909091

素因数分解:

$3^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{2713}}^1$

素因数の和:3090

約数の個数: 16

約数和(自身を含む): 31960064

約数和(自身を除く): 11050973

約数列:

[1, 3, 7, 21, 367, 1101, 2569, 2713, 7707, 8139, 18991, 56973, 995671, 2987013, 6969697, 20909091]

約数ペア:

[(1, 20909091), (3, 6969697), (7, 2987013), (21, 995671), (367, 56973), (1101, 18991), (2569, 8139), (2713, 7707)]