20511689

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:448

約数の個数: 16

約数和(自身を含む): 23048064

約数和(自身を除く): 2536375

約数列:

[1, 11, 53, 151, 233, 583, 1661, 2563, 8003, 12349, 35183, 88033, 135839, 387013, 1864699, 20511689]

約数ペア:

[(1, 20511689), (11, 1864699), (53, 387013), (151, 135839), (233, 88033), (583, 35183), (1661, 12349), (2563, 8003)]