219626289

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1318

約数の個数: 32

約数和(自身を含む): 337505280

約数和(自身を除く): 117878991

約数列:

[1, 3, 9, 27, 31, 93, 257, 279, 771, 837, 1021, 2313, 3063, 6939, 7967, 9189, 23901, 27567, 31651, 71703, 94953, 215109, 262397, 284859, 787191, 854577, 2361573, 7084719, 8134307, 24402921, 73208763, 219626289]

約数ペア:

[(1, 219626289), (3, 73208763), (9, 24402921), (27, 8134307), (31, 7084719), (93, 2361573), (257, 854577), (279, 787191), (771, 284859), (837, 262397), (1021, 215109), (2313, 94953), (3063, 71703), (6939, 31651), (7967, 27567), (9189, 23901)]