20127921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1153}}^1$

素因数の和:1213

約数の個数: 24

約数和(自身を含む): 30631776

約数和(自身を除く): 10503855

約数列:

[1, 3, 11, 23, 33, 69, 253, 529, 759, 1153, 1587, 3459, 5819, 12683, 17457, 26519, 38049, 79557, 291709, 609937, 875127, 1829811, 6709307, 20127921]

約数ペア:

[(1, 20127921), (3, 6709307), (11, 1829811), (23, 875127), (33, 609937), (69, 291709), (253, 79557), (529, 38049), (759, 26519), (1153, 17457), (1587, 12683), (3459, 5819)]