138889478

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1567}}^1$

素因数の和:2076

約数の個数: 32

約数和(自身を含む): 257101824

約数和(自身を除く): 118212346

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 487, 974, 1567, 3134, 3409, 6331, 6818, 10969, 12662, 20371, 21938, 40742, 44317, 88634, 142597, 285194, 763129, 1526258, 5341903, 9920677, 10683806, 19841354, 69444739, 138889478]

約数ペア:

[(1, 138889478), (2, 69444739), (7, 19841354), (13, 10683806), (14, 9920677), (26, 5341903), (91, 1526258), (182, 763129), (487, 285194), (974, 142597), (1567, 88634), (3134, 44317), (3409, 40742), (6331, 21938), (6818, 20371), (10969, 12662)]