18221798

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 33450240

約数和(自身を除く): 15228442

約数列:

[1, 2, 7, 14, 19, 38, 61, 122, 133, 266, 427, 854, 1123, 1159, 2246, 2318, 7861, 8113, 15722, 16226, 21337, 42674, 68503, 137006, 149359, 298718, 479521, 959042, 1301557, 2603114, 9110899, 18221798]

約数ペア:

[(1, 18221798), (2, 9110899), (7, 2603114), (14, 1301557), (19, 959042), (38, 479521), (61, 298718), (122, 149359), (133, 137006), (266, 68503), (427, 42674), (854, 21337), (1123, 16226), (1159, 15722), (2246, 8113), (2318, 7861)]