51420213

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23131}}^1$

素因数の和:23169

約数の個数: 24

約数和(自身を含む): 84200480

約数和(自身を除く): 32780267

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 23131, 69393, 208179, 300703, 439489, 902109, 1318467, 2706327, 3955401, 5713357, 17140071, 51420213]

約数ペア:

[(1, 51420213), (3, 17140071), (9, 5713357), (13, 3955401), (19, 2706327), (39, 1318467), (57, 902109), (117, 439489), (171, 300703), (247, 208179), (741, 69393), (2223, 23131)]