19668904

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{66449}}^1$

素因数の和:66492

約数の個数: 16

約数和(自身を含む): 37876500

約数和(自身を除く): 18207596

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 66449, 132898, 265796, 531592, 2458613, 4917226, 9834452, 19668904]

約数ペア:

[(1, 19668904), (2, 9834452), (4, 4917226), (8, 2458613), (37, 531592), (74, 265796), (148, 132898), (296, 66449)]