20749212

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 57762432

約数和(自身を除く): 37013220

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 151, 198, 302, 347, 396, 453, 604, 694, 906, 1041, 1359, 1388, 1661, 1812, 2082, 2718, 3123, 3322, 3817, 4164, 4983, 5436, 6246, 6644, 7634, 9966, 11451, 12492, 14949, 15268, 19932, 22902, 29898, 34353, 45804, 52397, 59796, 68706, 104794, 137412, 157191, 209588, 314382, 471573, 576367, 628764, 943146, 1152734, 1729101, 1886292, 2305468, 3458202, 5187303, 6916404, 10374606, 20749212]

約数ペア:

[(1, 20749212), (2, 10374606), (3, 6916404), (4, 5187303), (6, 3458202), (9, 2305468), (11, 1886292), (12, 1729101), (18, 1152734), (22, 943146), (33, 628764), (36, 576367), (44, 471573), (66, 314382), (99, 209588), (132, 157191), (151, 137412), (198, 104794), (302, 68706), (347, 59796), (396, 52397), (453, 45804), (604, 34353), (694, 29898), (906, 22902), (1041, 19932), (1359, 15268), (1388, 14949), (1661, 12492), (1812, 11451), (2082, 9966), (2718, 7634), (3123, 6644), (3322, 6246), (3817, 5436), (4164, 4983)]