261289119

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1873}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 442653792

約数和(自身を除く): 181364673

約数列:

[1, 3, 7, 13, 21, 39, 49, 73, 91, 147, 219, 273, 511, 637, 949, 1533, 1873, 1911, 2847, 3577, 5619, 6643, 10731, 13111, 19929, 24349, 39333, 46501, 73047, 91777, 136729, 139503, 170443, 275331, 410187, 511329, 957103, 1193101, 1777477, 2871309, 3579303, 5332431, 6699721, 12442339, 20099163, 37327017, 87096373, 261289119]

約数ペア:

[(1, 261289119), (3, 87096373), (7, 37327017), (13, 20099163), (21, 12442339), (39, 6699721), (49, 5332431), (73, 3579303), (91, 2871309), (147, 1777477), (219, 1193101), (273, 957103), (511, 511329), (637, 410187), (949, 275331), (1533, 170443), (1873, 139503), (1911, 136729), (2847, 91777), (3577, 73047), (5619, 46501), (6643, 39333), (10731, 24349), (13111, 19929)]