18904527

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{787}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 29133936

約数和(自身を除く): 10229409

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 787, 1413, 2361, 2669, 7083, 8007, 13379, 24021, 40137, 120411, 123559, 370677, 1112031, 2100503, 6301509, 18904527]

約数ペア:

[(1, 18904527), (3, 6301509), (9, 2100503), (17, 1112031), (51, 370677), (153, 123559), (157, 120411), (471, 40137), (787, 24021), (1413, 13379), (2361, 8007), (2669, 7083)]