20290613

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^2$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 25421760

約数和(自身を除く): 5131147

約数列:

[1, 7, 19, 41, 61, 133, 287, 427, 779, 1159, 2501, 3721, 5453, 8113, 17507, 26047, 47519, 70699, 152561, 332633, 494893, 1067927, 2898659, 20290613]

約数ペア:

[(1, 20290613), (7, 2898659), (19, 1067927), (41, 494893), (61, 332633), (133, 152561), (287, 70699), (427, 47519), (779, 26047), (1159, 17507), (2501, 8113), (3721, 5453)]