20823964

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2963}}^1$

素因数の和:3225

約数の個数: 24

約数和(自身を含む): 41827968

約数和(自身を除く): 21004004

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 2963, 3514, 5926, 7028, 11852, 20741, 41482, 82964, 743713, 1487426, 2974852, 5205991, 10411982, 20823964]

約数ペア:

[(1, 20823964), (2, 10411982), (4, 5205991), (7, 2974852), (14, 1487426), (28, 743713), (251, 82964), (502, 41482), (1004, 20741), (1757, 11852), (2963, 7028), (3514, 5926)]