21194998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15093002

約数列:

[1, 2, 11, 22, 29, 58, 139, 239, 278, 319, 478, 638, 1529, 2629, 3058, 4031, 5258, 6931, 8062, 13862, 33221, 44341, 66442, 76241, 88682, 152482, 365431, 730862, 963409, 1926818, 10597499, 21194998]

約数ペア:

[(1, 21194998), (2, 10597499), (11, 1926818), (22, 963409), (29, 730862), (58, 365431), (139, 152482), (239, 88682), (278, 76241), (319, 66442), (478, 44341), (638, 33221), (1529, 13862), (2629, 8062), (3058, 6931), (4031, 5258)]