131451057

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{2851}}^1$

素因数の和:3013

約数の個数: 24

約数和(自身を含む): 195761280

約数和(自身を除く): 64310223

約数列:

[1, 3, 9, 47, 109, 141, 327, 423, 981, 2851, 5123, 8553, 15369, 25659, 46107, 133997, 310759, 401991, 932277, 1205973, 2796831, 14605673, 43817019, 131451057]

約数ペア:

[(1, 131451057), (3, 43817019), (9, 14605673), (47, 2796831), (109, 1205973), (141, 932277), (327, 401991), (423, 310759), (981, 133997), (2851, 46107), (5123, 25659), (8553, 15369)]