21056893

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 25508736

約数和(自身を除く): 4451843

約数列:

[1, 11, 13, 47, 143, 169, 241, 517, 611, 1859, 2651, 3133, 6721, 7943, 11327, 34463, 40729, 87373, 124597, 147251, 448019, 1619761, 1914263, 21056893]

約数ペア:

[(1, 21056893), (11, 1914263), (13, 1619761), (47, 448019), (143, 147251), (169, 124597), (241, 87373), (517, 40729), (611, 34463), (1859, 11327), (2651, 7943), (3133, 6721)]