21099190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4129}}^1$

素因数の和:4216

約数の個数: 32

約数和(自身を含む): 44009280

約数和(自身を除く): 22910090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4129, 5110, 8258, 20645, 28903, 41290, 57806, 144515, 289030, 301417, 602834, 1507085, 2109919, 3014170, 4219838, 10549595, 21099190]

約数ペア:

[(1, 21099190), (2, 10549595), (5, 4219838), (7, 3014170), (10, 2109919), (14, 1507085), (35, 602834), (70, 301417), (73, 289030), (146, 144515), (365, 57806), (511, 41290), (730, 28903), (1022, 20645), (2555, 8258), (4129, 5110)]