27808551

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 41243904

約数和(自身を除く): 13435353

約数列:

[1, 3, 9, 67, 107, 201, 321, 431, 603, 963, 1293, 3879, 7169, 21507, 28877, 46117, 64521, 86631, 138351, 259893, 415053, 3089839, 9269517, 27808551]

約数ペア:

[(1, 27808551), (3, 9269517), (9, 3089839), (67, 415053), (107, 259893), (201, 138351), (321, 86631), (431, 64521), (603, 46117), (963, 28877), (1293, 21507), (3879, 7169)]