18837904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69257}}^1$

素因数の和:69282

約数の個数: 20

約数和(自身を含む): 38645964

約数和(自身を除く): 19808060

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69257, 138514, 277028, 554056, 1108112, 1177369, 2354738, 4709476, 9418952, 18837904]

約数ペア:

[(1, 18837904), (2, 9418952), (4, 4709476), (8, 2354738), (16, 1177369), (17, 1108112), (34, 554056), (68, 277028), (136, 138514), (272, 69257)]