20798775

素因数分解:

$3^4\times 5^2\times {\mathrm{10271}}^1$

素因数の和:10293

約数の個数: 30

約数和(自身を含む): 38530272

約数和(自身を除く): 17731497

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10271, 30813, 51355, 92439, 154065, 256775, 277317, 462195, 770325, 831951, 1386585, 2310975, 4159755, 6932925, 20798775]

約数ペア:

[(1, 20798775), (3, 6932925), (5, 4159755), (9, 2310975), (15, 1386585), (25, 831951), (27, 770325), (45, 462195), (75, 277317), (81, 256775), (135, 154065), (225, 92439), (405, 51355), (675, 30813), (2025, 10271)]