20812539

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1613}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 33467904

約数和(自身を除く): 12655365

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 391, 561, 759, 1173, 1613, 4301, 4839, 12903, 17743, 27421, 37099, 53229, 82263, 111297, 301631, 408089, 630683, 904893, 1224267, 1892049, 6937513, 20812539]

約数ペア:

[(1, 20812539), (3, 6937513), (11, 1892049), (17, 1224267), (23, 904893), (33, 630683), (51, 408089), (69, 301631), (187, 111297), (253, 82263), (391, 53229), (561, 37099), (759, 27421), (1173, 17743), (1613, 12903), (4301, 4839)]