21490107837

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{193}}^1\times {\mathrm{2239}}^1$

素因数の和:2594

約数の個数: 48

約数和(自身を含む): 31903656960

約数和(自身を除く): 10413549123

約数列:

[1, 3, 11, 33, 121, 137, 193, 363, 411, 579, 1507, 2123, 2239, 4521, 6369, 6717, 16577, 23353, 24629, 26441, 49731, 70059, 73887, 79323, 270919, 290851, 306743, 432127, 812757, 872553, 920229, 1296381, 3199361, 3374173, 4753397, 9598083, 10122519, 14260191, 37115903, 52287367, 59201399, 111347709, 156862101, 177604197, 651215389, 1953646167, 7163369279, 21490107837]

約数ペア:

[(1, 21490107837), (3, 7163369279), (11, 1953646167), (33, 651215389), (121, 177604197), (137, 156862101), (193, 111347709), (363, 59201399), (411, 52287367), (579, 37115903), (1507, 14260191), (2123, 10122519), (2239, 9598083), (4521, 4753397), (6369, 3374173), (6717, 3199361), (16577, 1296381), (23353, 920229), (24629, 872553), (26441, 812757), (49731, 432127), (70059, 306743), (73887, 290851), (79323, 270919)]