17728137

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{641}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 29377920

約数和(自身を除く): 11649783

約数列:

[1, 3, 7, 9, 21, 63, 439, 641, 1317, 1923, 3073, 3951, 4487, 5769, 9219, 13461, 27657, 40383, 281399, 844197, 1969793, 2532591, 5909379, 17728137]

約数ペア:

[(1, 17728137), (3, 5909379), (7, 2532591), (9, 1969793), (21, 844197), (63, 281399), (439, 40383), (641, 27657), (1317, 13461), (1923, 9219), (3073, 5769), (3951, 4487)]