256979463909

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{63404753}}^1$

素因数の和:63404956

約数の個数: 16

約数和(自身を含む): 393616712832

約数和(自身を除く): 136637248923

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 63404753, 190214259, 443833271, 1331499813, 12237117329, 36711351987, 85659821303, 256979463909]

約数ペア:

[(1, 256979463909), (3, 85659821303), (7, 36711351987), (21, 12237117329), (193, 1331499813), (579, 443833271), (1351, 190214259), (4053, 63404753)]