20721948

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{132833}}^1$

素因数の和:132853

約数の個数: 24

約数和(自身を含む): 52070928

約数和(自身を除く): 31348980

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 132833, 265666, 398499, 531332, 796998, 1593996, 1726829, 3453658, 5180487, 6907316, 10360974, 20721948]

約数ペア:

[(1, 20721948), (2, 10360974), (3, 6907316), (4, 5180487), (6, 3453658), (12, 1726829), (13, 1593996), (26, 796998), (39, 531332), (52, 398499), (78, 265666), (156, 132833)]