20278778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{33911}}^1$

素因数の和:33949

約数の個数: 16

約数和(自身を含む): 34183296

約数和(自身を除く): 13904518

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 33911, 67822, 440843, 779953, 881686, 1559906, 10139389, 20278778]

約数ペア:

[(1, 20278778), (2, 10139389), (13, 1559906), (23, 881686), (26, 779953), (46, 440843), (299, 67822), (598, 33911)]