21276645

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109111}}^1$

素因数の和:109132

約数の個数: 16

約数和(自身を含む): 36661632

約数和(自身を除く): 15384987

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 109111, 327333, 545555, 1418443, 1636665, 4255329, 7092215, 21276645]

約数ペア:

[(1, 21276645), (3, 7092215), (5, 4255329), (13, 1636665), (15, 1418443), (39, 545555), (65, 327333), (195, 109111)]