21662196

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41981}}^1$

素因数の和:42031

約数の個数: 24

約数和(自身を含む): 51721824

約数和(自身を除く): 30059628

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41981, 83962, 125943, 167924, 251886, 503772, 1805183, 3610366, 5415549, 7220732, 10831098, 21662196]

約数ペア:

[(1, 21662196), (2, 10831098), (3, 7220732), (4, 5415549), (6, 3610366), (12, 1805183), (43, 503772), (86, 251886), (129, 167924), (172, 125943), (258, 83962), (516, 41981)]