20518484

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 43309056

約数和(自身を除く): 22790572

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 151, 161, 211, 302, 322, 422, 604, 644, 844, 1057, 1477, 2114, 2954, 3473, 4228, 4853, 5908, 6946, 9706, 13892, 19412, 24311, 31861, 33971, 48622, 63722, 67942, 97244, 127444, 135884, 223027, 446054, 732803, 892108, 1465606, 2931212, 5129621, 10259242, 20518484]

約数ペア:

[(1, 20518484), (2, 10259242), (4, 5129621), (7, 2931212), (14, 1465606), (23, 892108), (28, 732803), (46, 446054), (92, 223027), (151, 135884), (161, 127444), (211, 97244), (302, 67942), (322, 63722), (422, 48622), (604, 33971), (644, 31861), (844, 24311), (1057, 19412), (1477, 13892), (2114, 9706), (2954, 6946), (3473, 5908), (4228, 4853)]