78821379

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{613}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 141249472

約数和(自身を除く): 62428093

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 157, 273, 471, 613, 819, 1099, 1413, 1839, 2041, 3297, 4291, 5517, 6123, 7969, 9891, 12873, 14287, 18369, 23907, 38619, 42861, 55783, 71721, 96241, 128583, 167349, 288723, 502047, 673687, 866169, 1251133, 2021061, 3753399, 6063183, 8757931, 11260197, 26273793, 78821379]

約数ペア:

[(1, 78821379), (3, 26273793), (7, 11260197), (9, 8757931), (13, 6063183), (21, 3753399), (39, 2021061), (63, 1251133), (91, 866169), (117, 673687), (157, 502047), (273, 288723), (471, 167349), (613, 128583), (819, 96241), (1099, 71721), (1413, 55783), (1839, 42861), (2041, 38619), (3297, 23907), (4291, 18369), (5517, 14287), (6123, 12873), (7969, 9891)]