20342097

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:275

約数の個数: 40

約数和(自身を含む): 32408640

約数和(自身を除く): 12066543

約数列:

[1, 3, 9, 23, 27, 61, 69, 81, 179, 183, 207, 537, 549, 621, 1403, 1611, 1647, 1863, 4117, 4209, 4833, 4941, 10919, 12351, 12627, 14499, 32757, 37053, 37881, 98271, 111159, 113643, 251137, 294813, 333477, 753411, 884439, 2260233, 6780699, 20342097]

約数ペア:

[(1, 20342097), (3, 6780699), (9, 2260233), (23, 884439), (27, 753411), (61, 333477), (69, 294813), (81, 251137), (179, 113643), (183, 111159), (207, 98271), (537, 37881), (549, 37053), (621, 32757), (1403, 14499), (1611, 12627), (1647, 12351), (1863, 10919), (4117, 4941), (4209, 4833)]