21492400

素因数分解:

$2^4\times 5^2\times {\mathrm{53731}}^1$

素因数の和:53749

約数の個数: 30

約数和(自身を含む): 51636452

約数和(自身を除く): 30144052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53731, 107462, 214924, 268655, 429848, 537310, 859696, 1074620, 1343275, 2149240, 2686550, 4298480, 5373100, 10746200, 21492400]

約数ペア:

[(1, 21492400), (2, 10746200), (4, 5373100), (5, 4298480), (8, 2686550), (10, 2149240), (16, 1343275), (20, 1074620), (25, 859696), (40, 537310), (50, 429848), (80, 268655), (100, 214924), (200, 107462), (400, 53731)]