20831866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 37417248

約数和(自身を除く): 16585382

約数列:

[1, 2, 11, 19, 22, 38, 43, 61, 86, 122, 209, 361, 418, 473, 671, 722, 817, 946, 1159, 1342, 1634, 2318, 2623, 3971, 5246, 7942, 8987, 12749, 15523, 17974, 22021, 25498, 28853, 31046, 44042, 49837, 57706, 99674, 170753, 242231, 341506, 484462, 548207, 946903, 1096414, 1893806, 10415933, 20831866]

約数ペア:

[(1, 20831866), (2, 10415933), (11, 1893806), (19, 1096414), (22, 946903), (38, 548207), (43, 484462), (61, 341506), (86, 242231), (122, 170753), (209, 99674), (361, 57706), (418, 49837), (473, 44042), (671, 31046), (722, 28853), (817, 25498), (946, 22021), (1159, 17974), (1342, 15523), (1634, 12749), (2318, 8987), (2623, 7942), (3971, 5246)]