20443731

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 35458560

約数和(自身を除く): 15014829

約数列:

[1, 3, 7, 11, 21, 33, 47, 49, 77, 141, 147, 231, 269, 329, 517, 539, 807, 987, 1551, 1617, 1883, 2303, 2959, 3619, 5649, 6909, 8877, 10857, 12643, 13181, 20713, 25333, 37929, 39543, 62139, 75999, 88501, 139073, 144991, 265503, 417219, 434973, 619507, 973511, 1858521, 2920533, 6814577, 20443731]

約数ペア:

[(1, 20443731), (3, 6814577), (7, 2920533), (11, 1858521), (21, 973511), (33, 619507), (47, 434973), (49, 417219), (77, 265503), (141, 144991), (147, 139073), (231, 88501), (269, 75999), (329, 62139), (517, 39543), (539, 37929), (807, 25333), (987, 20713), (1551, 13181), (1617, 12643), (1883, 10857), (2303, 8877), (2959, 6909), (3619, 5649)]