678484779

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1\times {\mathrm{947}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 1047805440

約数和(自身を除く): 369320661

約数列:

[1, 3, 7, 21, 109, 313, 327, 763, 939, 947, 2191, 2289, 2841, 6573, 6629, 19887, 34117, 102351, 103223, 238819, 296411, 309669, 716457, 722561, 889233, 2074877, 2167683, 6224631, 32308799, 96926397, 226161593, 678484779]

約数ペア:

[(1, 678484779), (3, 226161593), (7, 96926397), (21, 32308799), (109, 6224631), (313, 2167683), (327, 2074877), (763, 889233), (939, 722561), (947, 716457), (2191, 309669), (2289, 296411), (2841, 238819), (6573, 103223), (6629, 102351), (19887, 34117)]