18977085

素因数分解:

$3^5\times 5^1\times {\mathrm{15619}}^1$

素因数の和:15639

約数の個数: 24

約数和(自身を含む): 34114080

約数和(自身を除く): 15136995

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15619, 46857, 78095, 140571, 234285, 421713, 702855, 1265139, 2108565, 3795417, 6325695, 18977085]

約数ペア:

[(1, 18977085), (3, 6325695), (5, 3795417), (9, 2108565), (15, 1265139), (27, 702855), (45, 421713), (81, 234285), (135, 140571), (243, 78095), (405, 46857), (1215, 15619)]