81536858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{72931}}^1$

素因数の和:72989

約数の個数: 16

約数和(自身を含む): 134778336

約数和(自身を除く): 53241478

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 72931, 145862, 948103, 1896206, 3136033, 6272066, 40768429, 81536858]

約数ペア:

[(1, 81536858), (2, 40768429), (13, 6272066), (26, 3136033), (43, 1896206), (86, 948103), (559, 145862), (1118, 72931)]