20869245

素因数分解:

$3^4\times 5^1\times {\mathrm{227}}^2$

素因数の和:471

約数の個数: 30

約数和(自身を含む): 37575582

約数和(自身を除く): 16706337

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 227, 405, 681, 1135, 2043, 3405, 6129, 10215, 18387, 30645, 51529, 91935, 154587, 257645, 463761, 772935, 1391283, 2318805, 4173849, 6956415, 20869245]

約数ペア:

[(1, 20869245), (3, 6956415), (5, 4173849), (9, 2318805), (15, 1391283), (27, 772935), (45, 463761), (81, 257645), (135, 154587), (227, 91935), (405, 51529), (681, 30645), (1135, 18387), (2043, 10215), (3405, 6129)]