18881451

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{14879}}^1$

素因数の和:14935

約数の個数: 16

約数和(自身を含む): 28569600

約数和(自身を除く): 9688149

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 14879, 44637, 133911, 401733, 699313, 2097939, 6293817, 18881451]

約数ペア:

[(1, 18881451), (3, 6293817), (9, 2097939), (27, 699313), (47, 401733), (141, 133911), (423, 44637), (1269, 14879)]