209121978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1\times {\mathrm{2203}}^1$

素因数の和:3438

約数の個数: 32

約数和(自身を含む): 450991296

約数和(自身を除く): 241869318

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1217, 2203, 2434, 3651, 4406, 6609, 7302, 13218, 15821, 28639, 31642, 47463, 57278, 85917, 94926, 171834, 2681051, 5362102, 8043153, 16086306, 34853663, 69707326, 104560989, 209121978]

約数ペア:

[(1, 209121978), (2, 104560989), (3, 69707326), (6, 34853663), (13, 16086306), (26, 8043153), (39, 5362102), (78, 2681051), (1217, 171834), (2203, 94926), (2434, 85917), (3651, 57278), (4406, 47463), (6609, 31642), (7302, 28639), (13218, 15821)]