19815159

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10369}}^1$

素因数の和:10399

約数の個数: 24

約数和(自身を含む): 33101040

約数和(自身を除く): 13285881

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10369, 31107, 72583, 134797, 217749, 404391, 508081, 943579, 1524243, 2830737, 6605053, 19815159]

約数ペア:

[(1, 19815159), (3, 6605053), (7, 2830737), (13, 1524243), (21, 943579), (39, 508081), (49, 404391), (91, 217749), (147, 134797), (273, 72583), (637, 31107), (1911, 10369)]