20669008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75989}}^1$

素因数の和:76014

約数の個数: 20

約数和(自身を含む): 42402420

約数和(自身を除く): 21733412

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75989, 151978, 303956, 607912, 1215824, 1291813, 2583626, 5167252, 10334504, 20669008]

約数ペア:

[(1, 20669008), (2, 10334504), (4, 5167252), (8, 2583626), (16, 1291813), (17, 1215824), (34, 607912), (68, 303956), (136, 151978), (272, 75989)]