21238492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 42434784

約数和(自身を除く): 21196292

約数列:

[1, 2, 4, 11, 22, 41, 44, 61, 82, 122, 164, 193, 244, 386, 451, 671, 772, 902, 1342, 1804, 2123, 2501, 2684, 4246, 5002, 7913, 8492, 10004, 11773, 15826, 23546, 27511, 31652, 47092, 55022, 87043, 110044, 129503, 174086, 259006, 348172, 482693, 518012, 965386, 1930772, 5309623, 10619246, 21238492]

約数ペア:

[(1, 21238492), (2, 10619246), (4, 5309623), (11, 1930772), (22, 965386), (41, 518012), (44, 482693), (61, 348172), (82, 259006), (122, 174086), (164, 129503), (193, 110044), (244, 87043), (386, 55022), (451, 47092), (671, 31652), (772, 27511), (902, 23546), (1342, 15826), (1804, 11773), (2123, 10004), (2501, 8492), (2684, 7913), (4246, 5002)]