28708587

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{7541}}^1$

素因数の和:7600

約数の個数: 20

約数和(自身を含む): 43803936

約数和(自身を除く): 15095349

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 7541, 22623, 67869, 203607, 354427, 610821, 1063281, 3189843, 9569529, 28708587]

約数ペア:

[(1, 28708587), (3, 9569529), (9, 3189843), (27, 1063281), (47, 610821), (81, 354427), (141, 203607), (423, 67869), (1269, 22623), (3807, 7541)]