821666416

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{471139}}^1$

素因数の和:471256

約数の個数: 20

約数和(自身を含む): 1606587400

約数和(自身を除く): 784920984

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 471139, 942278, 1884556, 3769112, 7538224, 51354151, 102708302, 205416604, 410833208, 821666416]

約数ペア:

[(1, 821666416), (2, 410833208), (4, 205416604), (8, 102708302), (16, 51354151), (109, 7538224), (218, 3769112), (436, 1884556), (872, 942278), (1744, 471139)]