21107164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5717}}^1$

素因数の和:5805

約数の個数: 24

約数和(自身を含む): 40346208

約数和(自身を除く): 19239044

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5717, 11434, 22868, 74321, 148642, 297284, 405907, 811814, 1623628, 5276791, 10553582, 21107164]

約数ペア:

[(1, 21107164), (2, 10553582), (4, 5276791), (13, 1623628), (26, 811814), (52, 405907), (71, 297284), (142, 148642), (284, 74321), (923, 22868), (1846, 11434), (3692, 5717)]