20523699

素因数分解:

$3^4\times 7^2\times {\mathrm{5171}}^1$

素因数の和:5197

約数の個数: 30

約数和(自身を含む): 35671284

約数和(自身を除く): 15147585

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5171, 15513, 36197, 46539, 108591, 139617, 253379, 325773, 418851, 760137, 977319, 2280411, 2931957, 6841233, 20523699]

約数ペア:

[(1, 20523699), (3, 6841233), (7, 2931957), (9, 2280411), (21, 977319), (27, 760137), (49, 418851), (63, 325773), (81, 253379), (147, 139617), (189, 108591), (441, 46539), (567, 36197), (1323, 15513), (3969, 5171)]