21852468

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 60846240

約数和(自身を除く): 38993772

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 139, 198, 278, 396, 397, 417, 556, 794, 834, 1191, 1251, 1529, 1588, 1668, 2382, 2502, 3058, 3573, 4367, 4587, 4764, 5004, 6116, 7146, 8734, 9174, 13101, 13761, 14292, 17468, 18348, 26202, 27522, 39303, 52404, 55044, 55183, 78606, 110366, 157212, 165549, 220732, 331098, 496647, 607013, 662196, 993294, 1214026, 1821039, 1986588, 2428052, 3642078, 5463117, 7284156, 10926234, 21852468]

約数ペア:

[(1, 21852468), (2, 10926234), (3, 7284156), (4, 5463117), (6, 3642078), (9, 2428052), (11, 1986588), (12, 1821039), (18, 1214026), (22, 993294), (33, 662196), (36, 607013), (44, 496647), (66, 331098), (99, 220732), (132, 165549), (139, 157212), (198, 110366), (278, 78606), (396, 55183), (397, 55044), (417, 52404), (556, 39303), (794, 27522), (834, 26202), (1191, 18348), (1251, 17468), (1529, 14292), (1588, 13761), (1668, 13101), (2382, 9174), (2502, 8734), (3058, 7146), (3573, 6116), (4367, 5004), (4587, 4764)]