21309178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1831}}^1$

素因数の和:1890

約数の個数: 24

約数和(自身を含む): 36471456

約数和(自身を除く): 15162278

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 529, 1058, 1831, 3662, 5819, 11638, 20141, 40282, 42113, 84226, 463243, 926486, 968599, 1937198, 10654589, 21309178]

約数ペア:

[(1, 21309178), (2, 10654589), (11, 1937198), (22, 968599), (23, 926486), (46, 463243), (253, 84226), (506, 42113), (529, 40282), (1058, 20141), (1831, 11638), (3662, 5819)]