19894777

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5393}}^1$

素因数の和:5448

約数の個数: 16

約数和(自身を含む): 24855552

約数和(自身を除く): 4960775

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5393, 37751, 91681, 167183, 641767, 1170281, 2842111, 19894777]

約数ペア:

[(1, 19894777), (7, 2842111), (17, 1170281), (31, 641767), (119, 167183), (217, 91681), (527, 37751), (3689, 5393)]