20865616

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1$

素因数の和:463

約数の個数: 40

約数和(自身を含む): 42218280

約数和(自身を除く): 21352664

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 193, 232, 233, 386, 464, 466, 772, 932, 1544, 1864, 3088, 3728, 5597, 6757, 11194, 13514, 22388, 27028, 44776, 44969, 54056, 89552, 89938, 108112, 179876, 359752, 719504, 1304101, 2608202, 5216404, 10432808, 20865616]

約数ペア:

[(1, 20865616), (2, 10432808), (4, 5216404), (8, 2608202), (16, 1304101), (29, 719504), (58, 359752), (116, 179876), (193, 108112), (232, 89938), (233, 89552), (386, 54056), (464, 44969), (466, 44776), (772, 27028), (932, 22388), (1544, 13514), (1864, 11194), (3088, 6757), (3728, 5597)]