20707647

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 28200960

約数和(自身を除く): 7493313

約数列:

[1, 3, 71, 191, 213, 509, 573, 1527, 13561, 36139, 40683, 97219, 108417, 291657, 6902549, 20707647]

約数ペア:

[(1, 20707647), (3, 6902549), (71, 291657), (191, 108417), (213, 97219), (509, 40683), (573, 36139), (1527, 13561)]