20666707965

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1\times {\mathrm{17471}}^1$

素因数の和:17850

約数の個数: 48

約数和(自身を含む): 36327223296

約数和(自身を除く): 15660515331

約数列:

[1, 3, 5, 9, 15, 45, 97, 271, 291, 485, 813, 873, 1355, 1455, 2439, 4065, 4365, 12195, 17471, 26287, 52413, 78861, 87355, 131435, 157239, 236583, 262065, 394305, 786195, 1182915, 1694687, 4734641, 5084061, 8473435, 14203923, 15252183, 23673205, 25420305, 42611769, 71019615, 76260915, 213058845, 459260177, 1377780531, 2296300885, 4133341593, 6888902655, 20666707965]

約数ペア:

[(1, 20666707965), (3, 6888902655), (5, 4133341593), (9, 2296300885), (15, 1377780531), (45, 459260177), (97, 213058845), (271, 76260915), (291, 71019615), (485, 42611769), (813, 25420305), (873, 23673205), (1355, 15252183), (1455, 14203923), (2439, 8473435), (4065, 5084061), (4365, 4734641), (12195, 1694687), (17471, 1182915), (26287, 786195), (52413, 394305), (78861, 262065), (87355, 236583), (131435, 157239)]