213250015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{204067}}^1$

素因数の和:204102

約数の個数: 16

約数和(自身を含む): 293857920

約数和(自身を除く): 80607905

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 204067, 1020335, 2244737, 3877273, 11223685, 19386365, 42650003, 213250015]

約数ペア:

[(1, 213250015), (5, 42650003), (11, 19386365), (19, 11223685), (55, 3877273), (95, 2244737), (209, 1020335), (1045, 204067)]