20686952151

素因数分解:

$3^4\times {\mathrm{1427}}^1\times {\mathrm{178973}}^1$

素因数の和:180412

約数の個数: 20

約数和(自身を含む): 30924559512

約数和(自身を除く): 10237607361

約数列:

[1, 3, 9, 27, 81, 1427, 4281, 12843, 38529, 115587, 178973, 536919, 1610757, 4832271, 14496813, 255394471, 766183413, 2298550239, 6895650717, 20686952151]

約数ペア:

[(1, 20686952151), (3, 6895650717), (9, 2298550239), (27, 766183413), (81, 255394471), (1427, 14496813), (4281, 4832271), (12843, 1610757), (38529, 536919), (115587, 178973)]