20698488

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{4049}}^1$

素因数の和:4132

約数の個数: 48

約数和(自身を含む): 56862000

約数和(自身を除く): 36163512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 4049, 5112, 8098, 12147, 16196, 24294, 32392, 36441, 48588, 72882, 97176, 145764, 287479, 291528, 574958, 862437, 1149916, 1724874, 2299832, 2587311, 3449748, 5174622, 6899496, 10349244, 20698488]

約数ペア:

[(1, 20698488), (2, 10349244), (3, 6899496), (4, 5174622), (6, 3449748), (8, 2587311), (9, 2299832), (12, 1724874), (18, 1149916), (24, 862437), (36, 574958), (71, 291528), (72, 287479), (142, 145764), (213, 97176), (284, 72882), (426, 48588), (568, 36441), (639, 32392), (852, 24294), (1278, 16196), (1704, 12147), (2556, 8098), (4049, 5112)]