20199938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 34290432

約数和(自身を除く): 14090494

約数列:

[1, 2, 11, 22, 43, 86, 131, 163, 262, 326, 473, 946, 1441, 1793, 2882, 3586, 5633, 7009, 11266, 14018, 21353, 42706, 61963, 77099, 123926, 154198, 234883, 469766, 918179, 1836358, 10099969, 20199938]

約数ペア:

[(1, 20199938), (2, 10099969), (11, 1836358), (22, 918179), (43, 469766), (86, 234883), (131, 154198), (163, 123926), (262, 77099), (326, 61963), (473, 42706), (946, 21353), (1441, 14018), (1793, 11266), (2882, 7009), (3586, 5633)]