18961868

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:434

約数の個数: 36

約数和(自身を含む): 36103200

約数和(自身を除く): 17141332

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 289, 349, 578, 698, 799, 1156, 1396, 1598, 3196, 5933, 11866, 13583, 16403, 23732, 27166, 32806, 54332, 65612, 100861, 201722, 278851, 403444, 557702, 1115404, 4740467, 9480934, 18961868]

約数ペア:

[(1, 18961868), (2, 9480934), (4, 4740467), (17, 1115404), (34, 557702), (47, 403444), (68, 278851), (94, 201722), (188, 100861), (289, 65612), (349, 54332), (578, 32806), (698, 27166), (799, 23732), (1156, 16403), (1396, 13583), (1598, 11866), (3196, 5933)]