21719344

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43789}}^1$

素因数の和:43828

約数の個数: 20

約数和(自身を含む): 43439680

約数和(自身を除く): 21720336

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43789, 87578, 175156, 350312, 700624, 1357459, 2714918, 5429836, 10859672, 21719344]

約数ペア:

[(1, 21719344), (2, 10859672), (4, 5429836), (8, 2714918), (16, 1357459), (31, 700624), (62, 350312), (124, 175156), (248, 87578), (496, 43789)]