21660926

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{11131}}^1$

素因数の和:11279

約数の個数: 16

約数和(自身を含む): 37403520

約数和(自身を除く): 15742594

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 11131, 22262, 77917, 155834, 1547209, 3094418, 10830463, 21660926]

約数ペア:

[(1, 21660926), (2, 10830463), (7, 3094418), (14, 1547209), (139, 155834), (278, 77917), (973, 22262), (1946, 11131)]