81473469

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20747}}^1$

素因数の和:20785

約数の個数: 32

約数和(自身を含む): 143410176

約数和(自身を除く): 61936707

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 20747, 62241, 145229, 228217, 352699, 435687, 684651, 1058097, 1597519, 2468893, 3879689, 4792557, 7406679, 11639067, 27157823, 81473469]

約数ペア:

[(1, 81473469), (3, 27157823), (7, 11639067), (11, 7406679), (17, 4792557), (21, 3879689), (33, 2468893), (51, 1597519), (77, 1058097), (119, 684651), (187, 435687), (231, 352699), (357, 228217), (561, 145229), (1309, 62241), (3927, 20747)]