328978223

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{73}}^1\times {\mathrm{1217}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 398743968

約数和(自身を除く): 69765745

約数列:

[1, 7, 23, 73, 161, 511, 529, 1217, 1679, 3703, 8519, 11753, 27991, 38617, 88841, 195937, 270319, 621887, 643793, 2043343, 4506551, 14303401, 46996889, 328978223]

約数ペア:

[(1, 328978223), (7, 46996889), (23, 14303401), (73, 4506551), (161, 2043343), (511, 643793), (529, 621887), (1217, 270319), (1679, 195937), (3703, 88841), (8519, 38617), (11753, 27991)]