20218352

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16411}}^1$

素因数の和:16437

約数の個数: 40

約数和(自身を含む): 48842112

約数和(自身を除く): 28623760

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16411, 32822, 65644, 114877, 131288, 180521, 229754, 262576, 361042, 459508, 722084, 919016, 1263647, 1444168, 1838032, 2527294, 2888336, 5054588, 10109176, 20218352]

約数ペア:

[(1, 20218352), (2, 10109176), (4, 5054588), (7, 2888336), (8, 2527294), (11, 1838032), (14, 1444168), (16, 1263647), (22, 919016), (28, 722084), (44, 459508), (56, 361042), (77, 262576), (88, 229754), (112, 180521), (154, 131288), (176, 114877), (308, 65644), (616, 32822), (1232, 16411)]