646679997

素因数分解:

$3^3\times {\mathrm{421}}^1\times {\mathrm{56891}}^1$

素因数の和:57321

約数の個数: 16

約数和(自身を含む): 960336960

約数和(自身を除く): 313656963

約数列:

[1, 3, 9, 27, 421, 1263, 3789, 11367, 56891, 170673, 512019, 1536057, 23951111, 71853333, 215559999, 646679997]

約数ペア:

[(1, 646679997), (3, 215559999), (9, 71853333), (27, 23951111), (421, 1536057), (1263, 512019), (3789, 170673), (11367, 56891)]