20385189

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 33663168

約数和(自身を除く): 13277979

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 137, 167, 297, 411, 501, 891, 1233, 1503, 1507, 1837, 3699, 4509, 4521, 5511, 11097, 13527, 13563, 16533, 22879, 40689, 49599, 68637, 122067, 148797, 205911, 251669, 617733, 755007, 1853199, 2265021, 6795063, 20385189]

約数ペア:

[(1, 20385189), (3, 6795063), (9, 2265021), (11, 1853199), (27, 755007), (33, 617733), (81, 251669), (99, 205911), (137, 148797), (167, 122067), (297, 68637), (411, 49599), (501, 40689), (891, 22879), (1233, 16533), (1503, 13563), (1507, 13527), (1837, 11097), (3699, 5511), (4509, 4521)]