21663005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1013}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 32707584

約数和(自身を除く): 11044579

約数列:

[1, 5, 7, 13, 35, 47, 65, 91, 235, 329, 455, 611, 1013, 1645, 3055, 4277, 5065, 7091, 13169, 21385, 35455, 47611, 65845, 92183, 238055, 333277, 460915, 618943, 1666385, 3094715, 4332601, 21663005]

約数ペア:

[(1, 21663005), (5, 4332601), (7, 3094715), (13, 1666385), (35, 618943), (47, 460915), (65, 333277), (91, 238055), (235, 92183), (329, 65845), (455, 47611), (611, 35455), (1013, 21385), (1645, 13169), (3055, 7091), (4277, 5065)]