21613868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16729}}^1$

素因数の和:16769

約数の個数: 24

約数和(自身を含む): 42159600

約数和(自身を除く): 20545732

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16729, 33458, 66916, 284393, 317851, 568786, 635702, 1137572, 1271404, 5403467, 10806934, 21613868]

約数ペア:

[(1, 21613868), (2, 10806934), (4, 5403467), (17, 1271404), (19, 1137572), (34, 635702), (38, 568786), (68, 317851), (76, 284393), (323, 66916), (646, 33458), (1292, 16729)]