21342170

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11923}}^1$

素因数の和:12109

約数の個数: 16

約数和(自身を含む): 38633760

約数和(自身を除く): 17291590

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 11923, 23846, 59615, 119230, 2134217, 4268434, 10671085, 21342170]

約数ペア:

[(1, 21342170), (2, 10671085), (5, 4268434), (10, 2134217), (179, 119230), (358, 59615), (895, 23846), (1790, 11923)]