27969781

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2113}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 33553408

約数和(自身を除く): 5583627

約数列:

[1, 7, 31, 61, 217, 427, 1891, 2113, 13237, 14791, 65503, 128893, 458521, 902251, 3995683, 27969781]

約数ペア:

[(1, 27969781), (7, 3995683), (31, 902251), (61, 458521), (217, 128893), (427, 65503), (1891, 14791), (2113, 13237)]