15218931

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 25256448

約数和(自身を除く): 10037517

約数列:

[1, 3, 7, 13, 21, 39, 91, 107, 273, 321, 521, 749, 1391, 1563, 2247, 3647, 4173, 6773, 9737, 10941, 20319, 29211, 47411, 55747, 142233, 167241, 390229, 724711, 1170687, 2174133, 5072977, 15218931]

約数ペア:

[(1, 15218931), (3, 5072977), (7, 2174133), (13, 1170687), (21, 724711), (39, 390229), (91, 167241), (107, 142233), (273, 55747), (321, 47411), (521, 29211), (749, 20319), (1391, 10941), (1563, 9737), (2247, 6773), (3647, 4173)]