21106964

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{719}}^1$

素因数の和:943

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 16995436

約数列:

[1, 2, 4, 41, 82, 164, 179, 358, 716, 719, 1438, 2876, 7339, 14678, 29356, 29479, 58958, 117916, 128701, 257402, 514804, 5276741, 10553482, 21106964]

約数ペア:

[(1, 21106964), (2, 10553482), (4, 5276741), (41, 514804), (82, 257402), (164, 128701), (179, 117916), (358, 58958), (716, 29479), (719, 29356), (1438, 14678), (2876, 7339)]