20974755

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1049}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14506845

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1049, 1333, 3147, 3999, 5245, 6665, 15735, 19995, 32519, 45107, 97557, 135321, 162595, 225535, 487785, 676605, 1398317, 4194951, 6991585, 20974755]

約数ペア:

[(1, 20974755), (3, 6991585), (5, 4194951), (15, 1398317), (31, 676605), (43, 487785), (93, 225535), (129, 162595), (155, 135321), (215, 97557), (465, 45107), (645, 32519), (1049, 19995), (1333, 15735), (3147, 6665), (3999, 5245)]