28905687

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 45273600

約数和(自身を除く): 16367913

約数列:

[1, 3, 9, 23, 27, 69, 89, 207, 267, 523, 621, 801, 1569, 2047, 2403, 4707, 6141, 12029, 14121, 18423, 36087, 46547, 55269, 108261, 139641, 324783, 418923, 1070581, 1256769, 3211743, 9635229, 28905687]

約数ペア:

[(1, 28905687), (3, 9635229), (9, 3211743), (23, 1256769), (27, 1070581), (69, 418923), (89, 324783), (207, 139641), (267, 108261), (523, 55269), (621, 46547), (801, 36087), (1569, 18423), (2047, 14121), (2403, 12029), (4707, 6141)]