28558827

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 19963413

約数列:

[1, 3, 9, 11, 17, 33, 51, 71, 99, 153, 187, 213, 239, 561, 639, 717, 781, 1207, 1683, 2151, 2343, 2629, 3621, 4063, 7029, 7887, 10863, 12189, 13277, 16969, 23661, 36567, 39831, 44693, 50907, 119493, 134079, 152721, 186659, 288473, 402237, 559977, 865419, 1679931, 2596257, 3173203, 9519609, 28558827]

約数ペア:

[(1, 28558827), (3, 9519609), (9, 3173203), (11, 2596257), (17, 1679931), (33, 865419), (51, 559977), (71, 402237), (99, 288473), (153, 186659), (187, 152721), (213, 134079), (239, 119493), (561, 50907), (639, 44693), (717, 39831), (781, 36567), (1207, 23661), (1683, 16969), (2151, 13277), (2343, 12189), (2629, 10863), (3621, 7887), (4063, 7029)]