19643996

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{263}}^2$

素因数の和:601

約数の個数: 18

約数和(自身を含む): 34994232

約数和(自身を除く): 15350236

約数列:

[1, 2, 4, 71, 142, 263, 284, 526, 1052, 18673, 37346, 69169, 74692, 138338, 276676, 4910999, 9821998, 19643996]

約数ペア:

[(1, 19643996), (2, 9821998), (4, 4910999), (71, 276676), (142, 138338), (263, 74692), (284, 69169), (526, 37346), (1052, 18673)]