18403209

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{881}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 29169504

約数和(自身を除く): 10766295

約数列:

[1, 3, 9, 11, 33, 99, 211, 633, 881, 1899, 2321, 2643, 6963, 7929, 9691, 20889, 29073, 87219, 185891, 557673, 1673019, 2044801, 6134403, 18403209]

約数ペア:

[(1, 18403209), (3, 6134403), (9, 2044801), (11, 1673019), (33, 557673), (99, 185891), (211, 87219), (633, 29073), (881, 20889), (1899, 9691), (2321, 7929), (2643, 6963)]