2157001

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 16

約数和(自身を含む): 2724480

約数和(自身を除く): 567479

約数列:

[1, 7, 11, 77, 109, 257, 763, 1199, 1799, 2827, 8393, 19789, 28013, 196091, 308143, 2157001]

約数ペア:

[(1, 2157001), (7, 308143), (11, 196091), (77, 28013), (109, 19789), (257, 8393), (763, 2827), (1199, 1799)]