18720516

素因数分解:

$2^2\times 3^1\times {\mathrm{197}}^1\times {\mathrm{7919}}^1$

素因数の和:8123

約数の個数: 24

約数和(自身を含む): 43908480

約数和(自身を除く): 25187964

約数列:

[1, 2, 3, 4, 6, 12, 197, 394, 591, 788, 1182, 2364, 7919, 15838, 23757, 31676, 47514, 95028, 1560043, 3120086, 4680129, 6240172, 9360258, 18720516]

約数ペア:

[(1, 18720516), (2, 9360258), (3, 6240172), (4, 4680129), (6, 3120086), (12, 1560043), (197, 95028), (394, 47514), (591, 31676), (788, 23757), (1182, 15838), (2364, 7919)]