20949412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 42319872

約数和(自身を除く): 21370460

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 127, 163, 253, 254, 326, 506, 508, 652, 1012, 1397, 1793, 2794, 2921, 3586, 3749, 5588, 5842, 7172, 7498, 11684, 14996, 20701, 32131, 41239, 41402, 64262, 82478, 82804, 128524, 164956, 227711, 455422, 476123, 910844, 952246, 1904492, 5237353, 10474706, 20949412]

約数ペア:

[(1, 20949412), (2, 10474706), (4, 5237353), (11, 1904492), (22, 952246), (23, 910844), (44, 476123), (46, 455422), (92, 227711), (127, 164956), (163, 128524), (253, 82804), (254, 82478), (326, 64262), (506, 41402), (508, 41239), (652, 32131), (1012, 20701), (1397, 14996), (1793, 11684), (2794, 7498), (2921, 7172), (3586, 5842), (3749, 5588)]