21685496

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1097}}^1$

素因数の和:1463

約数の個数: 32

約数和(自身を含む): 46643040

約数和(自身を除く): 24957544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1097, 1412, 2194, 2471, 2824, 4388, 4942, 7679, 8776, 9884, 15358, 19768, 30716, 61432, 387241, 774482, 1548964, 2710687, 3097928, 5421374, 10842748, 21685496]

約数ペア:

[(1, 21685496), (2, 10842748), (4, 5421374), (7, 3097928), (8, 2710687), (14, 1548964), (28, 774482), (56, 387241), (353, 61432), (706, 30716), (1097, 19768), (1412, 15358), (2194, 9884), (2471, 8776), (2824, 7679), (4388, 4942)]