20145723

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 31051776

約数和(自身を除く): 10906053

約数列:

[1, 3, 13, 23, 37, 39, 69, 111, 299, 481, 607, 851, 897, 1443, 1821, 2553, 7891, 11063, 13961, 22459, 23673, 33189, 41883, 67377, 181493, 291967, 516557, 544479, 875901, 1549671, 6715241, 20145723]

約数ペア:

[(1, 20145723), (3, 6715241), (13, 1549671), (23, 875901), (37, 544479), (39, 516557), (69, 291967), (111, 181493), (299, 67377), (481, 41883), (607, 33189), (851, 23673), (897, 22459), (1443, 13961), (1821, 11063), (2553, 7891)]