20855447

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 22861440

約数和(自身を除く): 2005993

約数列:

[1, 17, 53, 79, 293, 901, 1343, 4187, 4981, 15529, 23147, 71179, 263993, 393499, 1226791, 20855447]

約数ペア:

[(1, 20855447), (17, 1226791), (53, 393499), (79, 263993), (293, 71179), (901, 23147), (1343, 15529), (4187, 4981)]