664751367

素因数分解:

$3^4\times 7^1\times {\mathrm{1172401}}^1$

素因数の和:1172420

約数の個数: 20

約数和(自身を含む): 1134885136

約数和(自身を除く): 470133769

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1172401, 3517203, 8206807, 10551609, 24620421, 31654827, 73861263, 94964481, 221583789, 664751367]

約数ペア:

[(1, 664751367), (3, 221583789), (7, 94964481), (9, 73861263), (21, 31654827), (27, 24620421), (63, 10551609), (81, 8206807), (189, 3517203), (567, 1172401)]