28519617

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1481}}^1$

素因数の和:1629

約数の個数: 24

約数和(自身を含む): 44602272

約数和(自身を除く): 16082655

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1481, 2751, 4443, 6419, 10367, 19257, 31101, 72569, 194011, 217707, 582033, 1358077, 4074231, 9506539, 28519617]

約数ペア:

[(1, 28519617), (3, 9506539), (7, 4074231), (21, 1358077), (49, 582033), (131, 217707), (147, 194011), (393, 72569), (917, 31101), (1481, 19257), (2751, 10367), (4443, 6419)]