20516144

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6857}}^1$

素因数の和:6893

約数の個数: 40

約数和(自身を含む): 45921168

約数和(自身を除く): 25405024

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6857, 13714, 27428, 54856, 75427, 109712, 116569, 150854, 233138, 301708, 466276, 603416, 932552, 1206832, 1282259, 1865104, 2564518, 5129036, 10258072, 20516144]

約数ペア:

[(1, 20516144), (2, 10258072), (4, 5129036), (8, 2564518), (11, 1865104), (16, 1282259), (17, 1206832), (22, 932552), (34, 603416), (44, 466276), (68, 301708), (88, 233138), (136, 150854), (176, 116569), (187, 109712), (272, 75427), (374, 54856), (748, 27428), (1496, 13714), (2992, 6857)]