19919007

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{2357}}^1$

素因数の和:2679

約数の個数: 16

約数和(自身を含む): 29616480

約数和(自身を除く): 9697473

約数列:

[1, 3, 9, 27, 313, 939, 2357, 2817, 7071, 8451, 21213, 63639, 737741, 2213223, 6639669, 19919007]

約数ペア:

[(1, 19919007), (3, 6639669), (9, 2213223), (27, 737741), (313, 63639), (939, 21213), (2357, 8451), (2817, 7071)]