21382690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1217}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 44198784

約数和(自身を除く): 22816094

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 251, 502, 1217, 1255, 1757, 2434, 2510, 3514, 6085, 8519, 8785, 12170, 17038, 17570, 42595, 85190, 305467, 610934, 1527335, 2138269, 3054670, 4276538, 10691345, 21382690]

約数ペア:

[(1, 21382690), (2, 10691345), (5, 4276538), (7, 3054670), (10, 2138269), (14, 1527335), (35, 610934), (70, 305467), (251, 85190), (502, 42595), (1217, 17570), (1255, 17038), (1757, 12170), (2434, 8785), (2510, 8519), (3514, 6085)]