258069721

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2683}}^1$

素因数の和:2861

約数の個数: 24

約数和(自身を含む): 325558464

約数和(自身を除く): 67488743

約数列:

[1, 7, 13, 49, 91, 151, 637, 1057, 1963, 2683, 7399, 13741, 18781, 34879, 96187, 131467, 244153, 405133, 1709071, 2835931, 5266729, 19851517, 36867103, 258069721]

約数ペア:

[(1, 258069721), (7, 36867103), (13, 19851517), (49, 5266729), (91, 2835931), (151, 1709071), (637, 405133), (1057, 244153), (1963, 131467), (2683, 96187), (7399, 34879), (13741, 18781)]