21000228172

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68182559}}^1$

素因数の和:68182581

約数の個数: 24

約数和(自身を含む): 45818680320

約数和(自身を除く): 24818452148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68182559, 136365118, 272730236, 477277913, 750008149, 954555826, 1500016298, 1909111652, 3000032596, 5250057043, 10500114086, 21000228172]

約数ペア:

[(1, 21000228172), (2, 10500114086), (4, 5250057043), (7, 3000032596), (11, 1909111652), (14, 1500016298), (22, 954555826), (28, 750008149), (44, 477277913), (77, 272730236), (154, 136365118), (308, 68182559)]