20188287581

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{269461}}^1$

素因数の和:269625

約数の個数: 24

約数和(自身を含む): 25803681120

約数和(自身を除く): 5615393539

約数列:

[1, 7, 11, 49, 77, 139, 539, 973, 1529, 6811, 10703, 74921, 269461, 1886227, 2964071, 13203589, 20748497, 37455079, 145239479, 262185553, 412005869, 1835298871, 2884041083, 20188287581]

約数ペア:

[(1, 20188287581), (7, 2884041083), (11, 1835298871), (49, 412005869), (77, 262185553), (139, 145239479), (539, 37455079), (973, 20748497), (1529, 13203589), (6811, 2964071), (10703, 1886227), (74921, 269461)]