138690621

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{21613}}^1$

素因数の和:21673

約数の個数: 24

約数和(自身を含む): 215794176

約数和(自身を除く): 77103555

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 6417, 21613, 64839, 194517, 497099, 670003, 1491297, 2010009, 4473891, 6030027, 15410069, 46230207, 138690621]

約数ペア:

[(1, 138690621), (3, 46230207), (9, 15410069), (23, 6030027), (31, 4473891), (69, 2010009), (93, 1491297), (207, 670003), (279, 497099), (713, 194517), (2139, 64839), (6417, 21613)]