28407717

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1034

約数の個数: 36

約数和(自身を含む): 46818720

約数和(自身を除く): 18411003

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 507, 741, 983, 1521, 2223, 2949, 3211, 8847, 9633, 12779, 18677, 28899, 38337, 56031, 115011, 166127, 168093, 242801, 498381, 728403, 1495143, 2185209, 3156413, 9469239, 28407717]

約数ペア:

[(1, 28407717), (3, 9469239), (9, 3156413), (13, 2185209), (19, 1495143), (39, 728403), (57, 498381), (117, 242801), (169, 168093), (171, 166127), (247, 115011), (507, 56031), (741, 38337), (983, 28899), (1521, 18677), (2223, 12779), (2949, 9633), (3211, 8847)]