21989040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{91621}}^1$

素因数の和:91637

約数の個数: 40

約数和(自身を含む): 68166768

約数和(自身を除く): 46177728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 91621, 183242, 274863, 366484, 458105, 549726, 732968, 916210, 1099452, 1374315, 1465936, 1832420, 2198904, 2748630, 3664840, 4397808, 5497260, 7329680, 10994520, 21989040]

約数ペア:

[(1, 21989040), (2, 10994520), (3, 7329680), (4, 5497260), (5, 4397808), (6, 3664840), (8, 2748630), (10, 2198904), (12, 1832420), (15, 1465936), (16, 1374315), (20, 1099452), (24, 916210), (30, 732968), (40, 549726), (48, 458105), (60, 366484), (80, 274863), (120, 183242), (240, 91621)]