20111861

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 6844939

約数列:

[1, 7, 11, 19, 59, 77, 133, 209, 233, 413, 649, 1121, 1463, 1631, 2563, 4427, 4543, 7847, 12331, 13747, 17941, 30989, 48697, 86317, 96229, 151217, 261193, 340879, 1058519, 1828351, 2873123, 20111861]

約数ペア:

[(1, 20111861), (7, 2873123), (11, 1828351), (19, 1058519), (59, 340879), (77, 261193), (133, 151217), (209, 96229), (233, 86317), (413, 48697), (649, 30989), (1121, 17941), (1463, 13747), (1631, 12331), (2563, 7847), (4427, 4543)]