21527091

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{257}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 32117904

約数和(自身を除く): 10590813

約数列:

[1, 3, 9, 41, 123, 227, 257, 369, 681, 771, 2043, 2313, 9307, 10537, 27921, 31611, 58339, 83763, 94833, 175017, 525051, 2391899, 7175697, 21527091]

約数ペア:

[(1, 21527091), (3, 7175697), (9, 2391899), (41, 525051), (123, 175017), (227, 94833), (257, 83763), (369, 58339), (681, 31611), (771, 27921), (2043, 10537), (2313, 9307)]