20217910

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 38117952

約数和(自身を除く): 17900042

約数列:

[1, 2, 5, 10, 37, 53, 74, 106, 185, 265, 370, 530, 1031, 1961, 2062, 3922, 5155, 9805, 10310, 19610, 38147, 54643, 76294, 109286, 190735, 273215, 381470, 546430, 2021791, 4043582, 10108955, 20217910]

約数ペア:

[(1, 20217910), (2, 10108955), (5, 4043582), (10, 2021791), (37, 546430), (53, 381470), (74, 273215), (106, 190735), (185, 109286), (265, 76294), (370, 54643), (530, 38147), (1031, 19610), (1961, 10310), (2062, 9805), (3922, 5155)]