78680421

素因数分解:

$3^2\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 115315200

約数和(自身を除く): 36634779

約数列:

[1, 3, 9, 197, 199, 223, 591, 597, 669, 1773, 1791, 2007, 39203, 43931, 44377, 117609, 131793, 133131, 352827, 395379, 399393, 8742269, 26226807, 78680421]

約数ペア:

[(1, 78680421), (3, 26226807), (9, 8742269), (197, 399393), (199, 395379), (223, 352827), (591, 133131), (597, 131793), (669, 117609), (1773, 44377), (1791, 43931), (2007, 39203)]