21225042

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 48311640

約数和(自身を除く): 27086598

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 73, 87, 146, 174, 219, 261, 438, 522, 557, 657, 1114, 1314, 1671, 2117, 3342, 4234, 5013, 6351, 10026, 12702, 16153, 19053, 32306, 38106, 40661, 48459, 81322, 96918, 121983, 145377, 243966, 290754, 365949, 731898, 1179169, 2358338, 3537507, 7075014, 10612521, 21225042]

約数ペア:

[(1, 21225042), (2, 10612521), (3, 7075014), (6, 3537507), (9, 2358338), (18, 1179169), (29, 731898), (58, 365949), (73, 290754), (87, 243966), (146, 145377), (174, 121983), (219, 96918), (261, 81322), (438, 48459), (522, 40661), (557, 38106), (657, 32306), (1114, 19053), (1314, 16153), (1671, 12702), (2117, 10026), (3342, 6351), (4234, 5013)]