28260729

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1531}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 46842432

約数和(自身を除く): 18581703

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1531, 2051, 2637, 4593, 6153, 10717, 13779, 18459, 32151, 96453, 448583, 1345749, 3140081, 4037247, 9420243, 28260729]

約数ペア:

[(1, 28260729), (3, 9420243), (7, 4037247), (9, 3140081), (21, 1345749), (63, 448583), (293, 96453), (879, 32151), (1531, 18459), (2051, 13779), (2637, 10717), (4593, 6153)]