20217380169

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{149423}}^1$

素因数の和:149829

約数の個数: 32

約数和(自身を含む): 32705925120

約数和(自身を除く): 12488544951

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 379, 1137, 2653, 6443, 7959, 19329, 45101, 135303, 149423, 448269, 1045961, 2540191, 3137883, 7620573, 17781337, 53344011, 56631317, 169893951, 396419219, 962732389, 1189257657, 2888197167, 6739126723, 20217380169]

約数ペア:

[(1, 20217380169), (3, 6739126723), (7, 2888197167), (17, 1189257657), (21, 962732389), (51, 396419219), (119, 169893951), (357, 56631317), (379, 53344011), (1137, 17781337), (2653, 7620573), (6443, 3137883), (7959, 2540191), (19329, 1045961), (45101, 448269), (135303, 149423)]