21522700

素因数分解:

$2^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1571}}^1$

素因数の和:1722

約数の個数: 36

約数和(自身を含む): 47075112

約数和(自身を除く): 25552412

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 137, 274, 548, 685, 1370, 1571, 2740, 3142, 3425, 6284, 6850, 7855, 13700, 15710, 31420, 39275, 78550, 157100, 215227, 430454, 860908, 1076135, 2152270, 4304540, 5380675, 10761350, 21522700]

約数ペア:

[(1, 21522700), (2, 10761350), (4, 5380675), (5, 4304540), (10, 2152270), (20, 1076135), (25, 860908), (50, 430454), (100, 215227), (137, 157100), (274, 78550), (548, 39275), (685, 31420), (1370, 15710), (1571, 13700), (2740, 7855), (3142, 6850), (3425, 6284)]