209280561

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 325306368

約数和(自身を除く): 116025807

約数列:

[1, 3, 7, 21, 73, 211, 219, 511, 633, 647, 1477, 1533, 1941, 4431, 4529, 13587, 15403, 46209, 47231, 107821, 136517, 141693, 323463, 330617, 409551, 955619, 991851, 2866857, 9965741, 29897223, 69760187, 209280561]

約数ペア:

[(1, 209280561), (3, 69760187), (7, 29897223), (21, 9965741), (73, 2866857), (211, 991851), (219, 955619), (511, 409551), (633, 330617), (647, 323463), (1477, 141693), (1533, 136517), (1941, 107821), (4431, 47231), (4529, 46209), (13587, 15403)]