2988139

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 3764736

約数和(自身を除く): 776597

約数列:

[1, 7, 11, 77, 151, 257, 1057, 1661, 1799, 2827, 11627, 19789, 38807, 271649, 426877, 2988139]

約数ペア:

[(1, 2988139), (7, 426877), (11, 271649), (77, 38807), (151, 19789), (257, 11627), (1057, 2827), (1661, 1799)]