28207977

素因数分解:

$3^1\times 7^3\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 44544000

約数和(自身を除く): 16336023

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 343, 347, 553, 1029, 1041, 1659, 2429, 3871, 7287, 11613, 17003, 27097, 27413, 51009, 81291, 82239, 119021, 191891, 357063, 575673, 1343237, 4029711, 9402659, 28207977]

約数ペア:

[(1, 28207977), (3, 9402659), (7, 4029711), (21, 1343237), (49, 575673), (79, 357063), (147, 191891), (237, 119021), (343, 82239), (347, 81291), (553, 51009), (1029, 27413), (1041, 27097), (1659, 17003), (2429, 11613), (3871, 7287)]