19009887

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2693}}^1$

素因数の和:2890

約数の個数: 16

約数和(自身を含む): 27457248

約数和(自身を除く): 8447361

約数列:

[1, 3, 13, 39, 181, 543, 2353, 2693, 7059, 8079, 35009, 105027, 487433, 1462299, 6336629, 19009887]

約数ペア:

[(1, 19009887), (3, 6336629), (13, 1462299), (39, 487433), (181, 105027), (543, 35009), (2353, 8079), (2693, 7059)]