18879063

素因数分解:

$3^1\times 7^4\times {\mathrm{2621}}^1$

素因数の和:2652

約数の個数: 20

約数和(自身を含む): 29376888

約数和(自身を除く): 10497825

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 2621, 7203, 7863, 18347, 55041, 128429, 385287, 899003, 2697009, 6293021, 18879063]

約数ペア:

[(1, 18879063), (3, 6293021), (7, 2697009), (21, 899003), (49, 385287), (147, 128429), (343, 55041), (1029, 18347), (2401, 7863), (2621, 7203)]