18991882

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 36892800

約数和(自身を除く): 17900918

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 169, 182, 299, 322, 338, 349, 598, 698, 1183, 2093, 2366, 2443, 3887, 4186, 4537, 4886, 7774, 8027, 9074, 16054, 27209, 31759, 54418, 56189, 58981, 63518, 104351, 112378, 117962, 208702, 412867, 730457, 825734, 1356563, 1460914, 2713126, 9495941, 18991882]

約数ペア:

[(1, 18991882), (2, 9495941), (7, 2713126), (13, 1460914), (14, 1356563), (23, 825734), (26, 730457), (46, 412867), (91, 208702), (161, 117962), (169, 112378), (182, 104351), (299, 63518), (322, 58981), (338, 56189), (349, 54418), (598, 31759), (698, 27209), (1183, 16054), (2093, 9074), (2366, 8027), (2443, 7774), (3887, 4886), (4186, 4537)]