20404797

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26261}}^1$

素因数の和:26308

約数の個数: 16

約数和(自身を含む): 31934592

約数和(自身を除く): 11529795

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26261, 78783, 183827, 551481, 971657, 2914971, 6801599, 20404797]

約数ペア:

[(1, 20404797), (3, 6801599), (7, 2914971), (21, 971657), (37, 551481), (111, 183827), (259, 78783), (777, 26261)]