21297850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8693}}^1$

素因数の和:8719

約数の個数: 36

約数和(自身を含む): 46086894

約数和(自身を除く): 24789044

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8693, 17386, 43465, 60851, 86930, 121702, 217325, 304255, 425957, 434650, 608510, 851914, 1521275, 2129785, 3042550, 4259570, 10648925, 21297850]

約数ペア:

[(1, 21297850), (2, 10648925), (5, 4259570), (7, 3042550), (10, 2129785), (14, 1521275), (25, 851914), (35, 608510), (49, 434650), (50, 425957), (70, 304255), (98, 217325), (175, 121702), (245, 86930), (350, 60851), (490, 43465), (1225, 17386), (2450, 8693)]