28721919

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{6229}}^1$

素因数の和:6314

約数の個数: 16

約数和(自身を含む): 40370400

約数和(自身を除く): 11648481

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4611, 6229, 18687, 180641, 330137, 541923, 990411, 9573973, 28721919]

約数ペア:

[(1, 28721919), (3, 9573973), (29, 990411), (53, 541923), (87, 330137), (159, 180641), (1537, 18687), (4611, 6229)]