669291

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 1080720

約数和(自身を除く): 411429

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 157, 203, 471, 609, 1099, 1421, 3297, 4263, 4553, 7693, 13659, 23079, 31871, 95613, 223097, 669291]

約数ペア:

[(1, 669291), (3, 223097), (7, 95613), (21, 31871), (29, 23079), (49, 13659), (87, 7693), (147, 4553), (157, 4263), (203, 3297), (471, 1421), (609, 1099)]