77881671

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{18451}}^1$

素因数の和:18531

約数の個数: 24

約数和(自身を含む): 130492544

約数和(自身を除く): 52610873

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 18451, 55353, 129157, 166059, 387471, 1162413, 1236217, 3708651, 8653519, 11125953, 25960557, 77881671]

約数ペア:

[(1, 77881671), (3, 25960557), (7, 11125953), (9, 8653519), (21, 3708651), (63, 1236217), (67, 1162413), (201, 387471), (469, 166059), (603, 129157), (1407, 55353), (4221, 18451)]