13178781

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2113}}^1$

素因数の和:2143

約数の個数: 40

約数和(自身を含む): 24556224

約数和(自身を除く): 11377443

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 2113, 6237, 6339, 14791, 19017, 23243, 44373, 57051, 69729, 133119, 162701, 171153, 209187, 399357, 488103, 627561, 1198071, 1464309, 1882683, 4392927, 13178781]

約数ペア:

[(1, 13178781), (3, 4392927), (7, 1882683), (9, 1464309), (11, 1198071), (21, 627561), (27, 488103), (33, 399357), (63, 209187), (77, 171153), (81, 162701), (99, 133119), (189, 69729), (231, 57051), (297, 44373), (567, 23243), (693, 19017), (891, 14791), (2079, 6339), (2113, 6237)]