21807120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90863}}^1$

素因数の和:90879

約数の個数: 40

約数和(自身を含む): 67602816

約数和(自身を除く): 45795696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90863, 181726, 272589, 363452, 454315, 545178, 726904, 908630, 1090356, 1362945, 1453808, 1817260, 2180712, 2725890, 3634520, 4361424, 5451780, 7269040, 10903560, 21807120]

約数ペア:

[(1, 21807120), (2, 10903560), (3, 7269040), (4, 5451780), (5, 4361424), (6, 3634520), (8, 2725890), (10, 2180712), (12, 1817260), (15, 1453808), (16, 1362945), (20, 1090356), (24, 908630), (30, 726904), (40, 545178), (48, 454315), (60, 363452), (80, 272589), (120, 181726), (240, 90863)]