8161959

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 12457984

約数和(自身を除く): 4296025

約数列:

[1, 3, 13, 31, 39, 43, 93, 129, 157, 403, 471, 559, 1209, 1333, 1677, 2041, 3999, 4867, 6123, 6751, 14601, 17329, 20253, 51987, 63271, 87763, 189813, 209281, 263289, 627843, 2720653, 8161959]

約数ペア:

[(1, 8161959), (3, 2720653), (13, 627843), (31, 263289), (39, 209281), (43, 189813), (93, 87763), (129, 63271), (157, 51987), (403, 20253), (471, 17329), (559, 14601), (1209, 6751), (1333, 6123), (1677, 4867), (2041, 3999)]