81481323

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20749}}^1$

素因数の和:20787

約数の個数: 32

約数和(自身を含む): 143424000

約数和(自身を除く): 61942677

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 20749, 62247, 145243, 228239, 352733, 435729, 684717, 1058199, 1597673, 2469131, 3880063, 4793019, 7407393, 11640189, 27160441, 81481323]

約数ペア:

[(1, 81481323), (3, 27160441), (7, 11640189), (11, 7407393), (17, 4793019), (21, 3880063), (33, 2469131), (51, 1597673), (77, 1058199), (119, 684717), (187, 435729), (231, 352733), (357, 228239), (561, 145243), (1309, 62247), (3927, 20749)]