18971736165

素因数分解:

$3^4\times 5^1\times {\mathrm{46843793}}^1$

素因数の和:46843810

約数の個数: 20

約数和(自身を含む): 34008594444

約数和(自身を除く): 15036858279

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 46843793, 140531379, 234218965, 421594137, 702656895, 1264782411, 2107970685, 3794347233, 6323912055, 18971736165]

約数ペア:

[(1, 18971736165), (3, 6323912055), (5, 3794347233), (9, 2107970685), (15, 1264782411), (27, 702656895), (45, 421594137), (81, 234218965), (135, 140531379), (405, 46843793)]