20696578

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18713}}^1$

素因数の和:18801

約数の個数: 16

約数和(自身を含む): 35930880

約数和(自身を除く): 15234302

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 18713, 37426, 130991, 261982, 1478327, 2956654, 10348289, 20696578]

約数ペア:

[(1, 20696578), (2, 10348289), (7, 2956654), (14, 1478327), (79, 261982), (158, 130991), (553, 37426), (1106, 18713)]