20789756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2311}}^1$

素因数の和:2501

約数の個数: 24

約数和(自身を含む): 39424224

約数和(自身を除く): 18634468

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2311, 4498, 4622, 8996, 9244, 30043, 60086, 120172, 399803, 799606, 1599212, 5197439, 10394878, 20789756]

約数ペア:

[(1, 20789756), (2, 10394878), (4, 5197439), (13, 1599212), (26, 799606), (52, 399803), (173, 120172), (346, 60086), (692, 30043), (2249, 9244), (2311, 8996), (4498, 4622)]