68820717

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1259}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 111283200

約数和(自身を除く): 42462483

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 959, 1259, 2603, 2877, 3777, 7809, 8813, 18221, 23921, 26439, 54663, 71763, 167447, 172483, 502341, 517449, 1207381, 3277177, 3622143, 9831531, 22940239, 68820717]

約数ペア:

[(1, 68820717), (3, 22940239), (7, 9831531), (19, 3622143), (21, 3277177), (57, 1207381), (133, 517449), (137, 502341), (399, 172483), (411, 167447), (959, 71763), (1259, 54663), (2603, 26439), (2877, 23921), (3777, 18221), (7809, 8813)]