18648538

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{1123}}^1$

素因数の和:1186

約数の個数: 24

約数和(自身を含む): 30833568

約数和(自身を除く): 12185030

約数列:

[1, 2, 19, 23, 38, 46, 361, 437, 722, 874, 1123, 2246, 8303, 16606, 21337, 25829, 42674, 51658, 405403, 490751, 810806, 981502, 9324269, 18648538]

約数ペア:

[(1, 18648538), (2, 9324269), (19, 981502), (23, 810806), (38, 490751), (46, 405403), (361, 51658), (437, 42674), (722, 25829), (874, 21337), (1123, 16606), (2246, 8303)]