1997205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 3815424

約数和(自身を除く): 1818219

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 827, 2415, 2481, 4135, 5789, 12405, 17367, 19021, 28945, 57063, 86835, 95105, 133147, 285315, 399441, 665735, 1997205]

約数ペア:

[(1, 1997205), (3, 665735), (5, 399441), (7, 285315), (15, 133147), (21, 95105), (23, 86835), (35, 57063), (69, 28945), (105, 19021), (115, 17367), (161, 12405), (345, 5789), (483, 4135), (805, 2481), (827, 2415)]