27990985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{16417}}^1$

素因数の和:16464

約数の個数: 16

約数和(自身を含む): 37827072

約数和(自身を除く): 9836087

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 16417, 82085, 180587, 508927, 902935, 2544635, 5598197, 27990985]

約数ペア:

[(1, 27990985), (5, 5598197), (11, 2544635), (31, 902935), (55, 508927), (155, 180587), (341, 82085), (1705, 16417)]