20005713

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1879}}^1$

素因数の和:1918

約数の個数: 36

約数和(自身を含む): 35780160

約数和(自身を除く): 15774447

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 1879, 3549, 5637, 10647, 13153, 16911, 24427, 39459, 73281, 118377, 170989, 219843, 317551, 512967, 952653, 1538901, 2222857, 2857959, 6668571, 20005713]

約数ペア:

[(1, 20005713), (3, 6668571), (7, 2857959), (9, 2222857), (13, 1538901), (21, 952653), (39, 512967), (63, 317551), (91, 219843), (117, 170989), (169, 118377), (273, 73281), (507, 39459), (819, 24427), (1183, 16911), (1521, 13153), (1879, 10647), (3549, 5637)]