18897554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16903}}^1$

素因数の和:16961

約数の個数: 16

約数和(自身を含む): 31238592

約数和(自身を除く): 12341038

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 16903, 33806, 219739, 439478, 726829, 1453658, 9448777, 18897554]

約数ペア:

[(1, 18897554), (2, 9448777), (13, 1453658), (26, 726829), (43, 439478), (86, 219739), (559, 33806), (1118, 16903)]