20342745

素因数分解:

$3^6\times 5^1\times {\mathrm{5581}}^1$

素因数の和:5604

約数の個数: 28

約数和(自身を含む): 36606756

約数和(自身を除く): 16264011

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5581, 16743, 27905, 50229, 83715, 150687, 251145, 452061, 753435, 1356183, 2260305, 4068549, 6780915, 20342745]

約数ペア:

[(1, 20342745), (3, 6780915), (5, 4068549), (9, 2260305), (15, 1356183), (27, 753435), (45, 452061), (81, 251145), (135, 150687), (243, 83715), (405, 50229), (729, 27905), (1215, 16743), (3645, 5581)]