21190604

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 38276448

約数和(自身を除く): 17085844

約数列:

[1, 2, 4, 41, 82, 157, 164, 314, 628, 823, 1646, 3292, 6437, 12874, 25748, 33743, 67486, 129211, 134972, 258422, 516844, 5297651, 10595302, 21190604]

約数ペア:

[(1, 21190604), (2, 10595302), (4, 5297651), (41, 516844), (82, 258422), (157, 134972), (164, 129211), (314, 67486), (628, 33743), (823, 25748), (1646, 12874), (3292, 6437)]