20502663

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4517}}^1$

素因数の和:4626

約数の個数: 16

約数和(自身を含む): 29276640

約数和(自身を除く): 8773977

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4517, 4539, 13551, 76789, 230367, 402013, 1206039, 6834221, 20502663]

約数ペア:

[(1, 20502663), (3, 6834221), (17, 1206039), (51, 402013), (89, 230367), (267, 76789), (1513, 13551), (4517, 4539)]