20798218

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{40151}}^1$

素因数の和:40197

約数の個数: 16

約数和(自身を含む): 36618624

約数和(自身を除く): 15820406

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 40151, 80302, 281057, 562114, 1485587, 2971174, 10399109, 20798218]

約数ペア:

[(1, 20798218), (2, 10399109), (7, 2971174), (14, 1485587), (37, 562114), (74, 281057), (259, 80302), (518, 40151)]