177777747

素因数分解:

$3^4\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1301}}^1$

素因数の和:1561

約数の個数: 40

約数和(自身を含む): 305001312

約数和(自身を除く): 127223565

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 241, 567, 723, 1301, 1687, 2169, 3903, 5061, 6507, 9107, 11709, 15183, 19521, 27321, 35127, 45549, 81963, 105381, 136647, 245889, 313541, 737667, 940623, 2194787, 2821869, 6584361, 8465607, 19753083, 25396821, 59259249, 177777747]

約数ペア:

[(1, 177777747), (3, 59259249), (7, 25396821), (9, 19753083), (21, 8465607), (27, 6584361), (63, 2821869), (81, 2194787), (189, 940623), (241, 737667), (567, 313541), (723, 245889), (1301, 136647), (1687, 105381), (2169, 81963), (3903, 45549), (5061, 35127), (6507, 27321), (9107, 19521), (11709, 15183)]