16686117

素因数分解:

$3^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 28332876

約数和(自身を除く): 11646759

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 157, 241, 441, 471, 723, 1099, 1413, 1687, 2169, 3297, 5061, 7693, 9891, 11809, 15183, 23079, 35427, 37837, 69237, 106281, 113511, 264859, 340533, 794577, 1854013, 2383731, 5562039, 16686117]

約数ペア:

[(1, 16686117), (3, 5562039), (7, 2383731), (9, 1854013), (21, 794577), (49, 340533), (63, 264859), (147, 113511), (157, 106281), (241, 69237), (441, 37837), (471, 35427), (723, 23079), (1099, 15183), (1413, 11809), (1687, 9891), (2169, 7693), (3297, 5061)]