20076819

素因数分解:

$3^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 11603181

約数列:

[1, 3, 7, 21, 49, 109, 147, 179, 327, 343, 537, 763, 1029, 1253, 2289, 3759, 5341, 8771, 16023, 19511, 26313, 37387, 58533, 61397, 112161, 136577, 184191, 409731, 956039, 2868117, 6692273, 20076819]

約数ペア:

[(1, 20076819), (3, 6692273), (7, 2868117), (21, 956039), (49, 409731), (109, 184191), (147, 136577), (179, 112161), (327, 61397), (343, 58533), (537, 37387), (763, 26313), (1029, 19511), (1253, 16023), (2289, 8771), (3759, 5341)]