278538351

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{17293}}^1$

素因数の和:17375

約数の個数: 32

約数和(自身を含む): 464862720

約数和(自身を除く): 186324369

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 2301, 5369, 16107, 17293, 51879, 121051, 224809, 363153, 674427, 1020287, 1573663, 3060861, 4720989, 7142009, 13263731, 21426027, 39791193, 92846117, 278538351]

約数ペア:

[(1, 278538351), (3, 92846117), (7, 39791193), (13, 21426027), (21, 13263731), (39, 7142009), (59, 4720989), (91, 3060861), (177, 1573663), (273, 1020287), (413, 674427), (767, 363153), (1239, 224809), (2301, 121051), (5369, 51879), (16107, 17293)]