78456861

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{42943}}^1$

素因数の和:42985

約数の個数: 24

約数和(自身を含む): 133985280

約数和(自身を除く): 55528419

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 42943, 128829, 300601, 386487, 901803, 1245347, 2705409, 3736041, 8717429, 11208123, 26152287, 78456861]

約数ペア:

[(1, 78456861), (3, 26152287), (7, 11208123), (9, 8717429), (21, 3736041), (29, 2705409), (63, 1245347), (87, 901803), (203, 386487), (261, 300601), (609, 128829), (1827, 42943)]