20818324

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2081}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 37950696

約数和(自身を除く): 17132372

約数列:

[1, 2, 4, 41, 61, 82, 122, 164, 244, 2081, 2501, 4162, 5002, 8324, 10004, 85321, 126941, 170642, 253882, 341284, 507764, 5204581, 10409162, 20818324]

約数ペア:

[(1, 20818324), (2, 10409162), (4, 5204581), (41, 507764), (61, 341284), (82, 253882), (122, 170642), (164, 126941), (244, 85321), (2081, 10004), (2501, 8324), (4162, 5002)]