21952179

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{1451}}^1$

素因数の和:1539

約数の個数: 18

約数和(自身を含む): 32523348

約数和(自身を除く): 10571169

約数列:

[1, 3, 9, 41, 123, 369, 1451, 1681, 4353, 5043, 13059, 15129, 59491, 178473, 535419, 2439131, 7317393, 21952179]

約数ペア:

[(1, 21952179), (3, 7317393), (9, 2439131), (41, 535419), (123, 178473), (369, 59491), (1451, 15129), (1681, 13059), (4353, 5043)]