21274288

素因数分解:

$2^4\times 7^1\times {\mathrm{189949}}^1$

素因数の和:189964

約数の個数: 20

約数和(自身を含む): 47107600

約数和(自身を除く): 25833312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189949, 379898, 759796, 1329643, 1519592, 2659286, 3039184, 5318572, 10637144, 21274288]

約数ペア:

[(1, 21274288), (2, 10637144), (4, 5318572), (7, 3039184), (8, 2659286), (14, 1519592), (16, 1329643), (28, 759796), (56, 379898), (112, 189949)]