26978943

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{521}}^1$

素因数の和:986

約数の個数: 16

約数和(自身を含む): 37007712

約数和(自身を除く): 10028769

約数列:

[1, 3, 41, 123, 421, 521, 1263, 1563, 17261, 21361, 51783, 64083, 219341, 658023, 8992981, 26978943]

約数ペア:

[(1, 26978943), (3, 8992981), (41, 658023), (123, 219341), (421, 64083), (521, 51783), (1263, 21361), (1563, 17261)]