21443571

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1409}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 32994000

約数和(自身を除く): 11550429

約数列:

[1, 3, 9, 19, 57, 89, 171, 267, 801, 1409, 1691, 4227, 5073, 12681, 15219, 26771, 80313, 125401, 240939, 376203, 1128609, 2382619, 7147857, 21443571]

約数ペア:

[(1, 21443571), (3, 7147857), (9, 2382619), (19, 1128609), (57, 376203), (89, 240939), (171, 125401), (267, 80313), (801, 26771), (1409, 15219), (1691, 12681), (4227, 5073)]