21170984

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{9157}}^1$

素因数の和:9197

約数の個数: 24

約数和(自身を含む): 42172590

約数和(自身を除く): 21001606

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9157, 18314, 36628, 73256, 155669, 311338, 622676, 1245352, 2646373, 5292746, 10585492, 21170984]

約数ペア:

[(1, 21170984), (2, 10585492), (4, 5292746), (8, 2646373), (17, 1245352), (34, 622676), (68, 311338), (136, 155669), (289, 73256), (578, 36628), (1156, 18314), (2312, 9157)]