21701715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7127}}^1$

素因数の和:7171

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19355565

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 7127, 21381, 35635, 49889, 106905, 149667, 206683, 249445, 620049, 748335, 1033415, 1446781, 3100245, 4340343, 7233905, 21701715]

約数ペア:

[(1, 21701715), (3, 7233905), (5, 4340343), (7, 3100245), (15, 1446781), (21, 1033415), (29, 748335), (35, 620049), (87, 249445), (105, 206683), (145, 149667), (203, 106905), (435, 49889), (609, 35635), (1015, 21381), (3045, 7127)]