81604369

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 111255552

約数和(自身を除く): 29651183

約数列:

[1, 7, 11, 17, 31, 77, 119, 187, 217, 341, 527, 1309, 2011, 2387, 3689, 5797, 14077, 22121, 34187, 40579, 62341, 154847, 239309, 376057, 436387, 685751, 1059797, 2632399, 4800257, 7418579, 11657767, 81604369]

約数ペア:

[(1, 81604369), (7, 11657767), (11, 7418579), (17, 4800257), (31, 2632399), (77, 1059797), (119, 685751), (187, 436387), (217, 376057), (341, 239309), (527, 154847), (1309, 62341), (2011, 40579), (2387, 34187), (3689, 22121), (5797, 14077)]