19973265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7879}}^1$

素因数の和:7913

約数の個数: 24

約数和(自身を含む): 34608960

約数和(自身を除く): 14635695

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 7879, 23637, 39395, 102427, 118185, 307281, 512135, 1331551, 1536405, 3994653, 6657755, 19973265]

約数ペア:

[(1, 19973265), (3, 6657755), (5, 3994653), (13, 1536405), (15, 1331551), (39, 512135), (65, 307281), (169, 118185), (195, 102427), (507, 39395), (845, 23637), (2535, 7879)]