21169772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{11003}}^1$

素因数の和:11057

約数の個数: 24

約数和(自身を含む): 40978896

約数和(自身を除く): 19809124

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 11003, 22006, 44012, 143039, 286078, 407111, 572156, 814222, 1628444, 5292443, 10584886, 21169772]

約数ペア:

[(1, 21169772), (2, 10584886), (4, 5292443), (13, 1628444), (26, 814222), (37, 572156), (52, 407111), (74, 286078), (148, 143039), (481, 44012), (962, 22006), (1924, 11003)]