21927556

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 46448640

約数和(自身を除く): 24521084

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 79, 92, 158, 161, 316, 322, 431, 553, 644, 862, 1106, 1724, 1817, 2212, 3017, 3634, 6034, 7268, 9913, 12068, 12719, 19826, 25438, 34049, 39652, 50876, 68098, 69391, 136196, 138782, 238343, 277564, 476686, 783127, 953372, 1566254, 3132508, 5481889, 10963778, 21927556]

約数ペア:

[(1, 21927556), (2, 10963778), (4, 5481889), (7, 3132508), (14, 1566254), (23, 953372), (28, 783127), (46, 476686), (79, 277564), (92, 238343), (158, 138782), (161, 136196), (316, 69391), (322, 68098), (431, 50876), (553, 39652), (644, 34049), (862, 25438), (1106, 19826), (1724, 12719), (1817, 12068), (2212, 9913), (3017, 7268), (3634, 6034)]