18218996972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{21737}}^1$

素因数の和:22238

約数の個数: 48

約数和(自身を含む): 35672579712

約数和(自身を除く): 17453582740

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 443, 473, 886, 946, 1772, 1892, 4873, 9746, 19049, 19492, 21737, 38098, 43474, 76196, 86948, 209539, 239107, 419078, 478214, 838156, 934691, 956428, 1869382, 3738764, 9629491, 10281601, 19258982, 20563202, 38517964, 41126404, 105924401, 211848802, 414068113, 423697604, 828136226, 1656272452, 4554749243, 9109498486, 18218996972]

約数ペア:

[(1, 18218996972), (2, 9109498486), (4, 4554749243), (11, 1656272452), (22, 828136226), (43, 423697604), (44, 414068113), (86, 211848802), (172, 105924401), (443, 41126404), (473, 38517964), (886, 20563202), (946, 19258982), (1772, 10281601), (1892, 9629491), (4873, 3738764), (9746, 1869382), (19049, 956428), (19492, 934691), (21737, 838156), (38098, 478214), (43474, 419078), (76196, 239107), (86948, 209539)]