18685496

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 36132480

約数和(自身を除く): 17446984

約数列:

[1, 2, 4, 8, 67, 71, 134, 142, 268, 284, 491, 536, 568, 982, 1964, 3928, 4757, 9514, 19028, 32897, 34861, 38056, 65794, 69722, 131588, 139444, 263176, 278888, 2335687, 4671374, 9342748, 18685496]

約数ペア:

[(1, 18685496), (2, 9342748), (4, 4671374), (8, 2335687), (67, 278888), (71, 263176), (134, 139444), (142, 131588), (268, 69722), (284, 65794), (491, 38056), (536, 34861), (568, 32897), (982, 19028), (1964, 9514), (3928, 4757)]