21483700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 54496512

約数和(自身を除く): 33012812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 653, 658, 700, 940, 1175, 1306, 1316, 1645, 2350, 2612, 3265, 3290, 4571, 4700, 6530, 6580, 8225, 9142, 13060, 16325, 16450, 18284, 22855, 30691, 32650, 32900, 45710, 61382, 65300, 91420, 114275, 122764, 153455, 214837, 228550, 306910, 429674, 457100, 613820, 767275, 859348, 1074185, 1534550, 2148370, 3069100, 4296740, 5370925, 10741850, 21483700]

約数ペア:

[(1, 21483700), (2, 10741850), (4, 5370925), (5, 4296740), (7, 3069100), (10, 2148370), (14, 1534550), (20, 1074185), (25, 859348), (28, 767275), (35, 613820), (47, 457100), (50, 429674), (70, 306910), (94, 228550), (100, 214837), (140, 153455), (175, 122764), (188, 114275), (235, 91420), (329, 65300), (350, 61382), (470, 45710), (653, 32900), (658, 32650), (700, 30691), (940, 22855), (1175, 18284), (1306, 16450), (1316, 16325), (1645, 13060), (2350, 9142), (2612, 8225), (3265, 6580), (3290, 6530), (4571, 4700)]