205938481

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 254251008

約数和(自身を除く): 48312527

約数列:

[1, 7, 23, 43, 151, 161, 197, 301, 989, 1057, 1379, 3473, 4531, 6493, 6923, 8471, 24311, 29747, 31717, 45451, 59297, 149339, 194833, 208229, 684181, 1045373, 1279121, 1363831, 4789267, 8953847, 29419783, 205938481]

約数ペア:

[(1, 205938481), (7, 29419783), (23, 8953847), (43, 4789267), (151, 1363831), (161, 1279121), (197, 1045373), (301, 684181), (989, 208229), (1057, 194833), (1379, 149339), (3473, 59297), (4531, 45451), (6493, 31717), (6923, 29747), (8471, 24311)]