20647466

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 36443520

約数和(自身を除く): 15796054

約数列:

[1, 2, 7, 14, 73, 89, 146, 178, 227, 454, 511, 623, 1022, 1246, 1589, 3178, 6497, 12994, 16571, 20203, 33142, 40406, 45479, 90958, 115997, 141421, 231994, 282842, 1474819, 2949638, 10323733, 20647466]

約数ペア:

[(1, 20647466), (2, 10323733), (7, 2949638), (14, 1474819), (73, 282842), (89, 231994), (146, 141421), (178, 115997), (227, 90958), (454, 45479), (511, 40406), (623, 33142), (1022, 20203), (1246, 16571), (1589, 12994), (3178, 6497)]