20178390862

素因数分解:

$2^1\times 7^1\times {\mathrm{21319}}^1\times {\mathrm{67607}}^1$

素因数の和:88935

約数の個数: 16

約数和(自身を含む): 34593661440

約数和(自身を除く): 14415270578

約数列:

[1, 2, 7, 14, 21319, 42638, 67607, 135214, 149233, 298466, 473249, 946498, 1441313633, 2882627266, 10089195431, 20178390862]

約数ペア:

[(1, 20178390862), (2, 10089195431), (7, 2882627266), (14, 1441313633), (21319, 946498), (42638, 473249), (67607, 298466), (135214, 149233)]