397761021

素因数分解:

$3^2\times 7^1\times {\mathrm{691}}^1\times {\mathrm{9137}}^1$

素因数の和:9841

約数の個数: 24

約数和(自身を含む): 657643584

約数和(自身を除く): 259882563

約数列:

[1, 3, 7, 9, 21, 63, 691, 2073, 4837, 6219, 9137, 14511, 27411, 43533, 63959, 82233, 191877, 575631, 6313667, 18941001, 44195669, 56823003, 132587007, 397761021]

約数ペア:

[(1, 397761021), (3, 132587007), (7, 56823003), (9, 44195669), (21, 18941001), (63, 6313667), (691, 575631), (2073, 191877), (4837, 82233), (6219, 63959), (9137, 43533), (14511, 27411)]