1388970023

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{72497}}^1$

素因数の和:72551

約数の個数: 24

約数和(自身を含む): 1785190752

約数和(自身を除く): 396220729

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1127, 2737, 19159, 72497, 507479, 1232449, 1667431, 3552353, 8627143, 11672017, 28346327, 60390001, 81704119, 198424289, 1388970023]

約数ペア:

[(1, 1388970023), (7, 198424289), (17, 81704119), (23, 60390001), (49, 28346327), (119, 11672017), (161, 8627143), (391, 3552353), (833, 1667431), (1127, 1232449), (2737, 507479), (19159, 72497)]