81255057

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 120648192

約数和(自身を除く): 39393135

約数列:

[1, 3, 13, 39, 47, 97, 141, 291, 457, 611, 1261, 1371, 1833, 3783, 4559, 5941, 13677, 17823, 21479, 44329, 59267, 64437, 132987, 177801, 279227, 576277, 837681, 1728831, 2083463, 6250389, 27085019, 81255057]

約数ペア:

[(1, 81255057), (3, 27085019), (13, 6250389), (39, 2083463), (47, 1728831), (97, 837681), (141, 576277), (291, 279227), (457, 177801), (611, 132987), (1261, 64437), (1371, 59267), (1833, 44329), (3783, 21479), (4559, 17823), (5941, 13677)]