313639131

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1\times {\mathrm{431}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 462163968

約数和(自身を除く): 148524837

約数列:

[1, 3, 13, 39, 47, 141, 397, 431, 611, 1191, 1293, 1833, 5161, 5603, 15483, 16809, 18659, 20257, 55977, 60771, 171107, 242567, 263341, 513321, 727701, 790023, 2224391, 6673173, 8042029, 24126087, 104546377, 313639131]

約数ペア:

[(1, 313639131), (3, 104546377), (13, 24126087), (39, 8042029), (47, 6673173), (141, 2224391), (397, 790023), (431, 727701), (611, 513321), (1191, 263341), (1293, 242567), (1833, 171107), (5161, 60771), (5603, 55977), (15483, 20257), (16809, 18659)]