257657651

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 276307200

約数和(自身を除く): 18649549

約数列:

[1, 19, 71, 389, 491, 1349, 7391, 9329, 27619, 34861, 190999, 524761, 662359, 3628981, 13560929, 257657651]

約数ペア:

[(1, 257657651), (19, 13560929), (71, 3628981), (389, 662359), (491, 524761), (1349, 190999), (7391, 34861), (9329, 27619)]