18989229

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31181}}^1$

素因数の和:31220

約数の個数: 16

約数和(自身を含む): 29934720

約数和(自身を除く): 10945491

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 31181, 93543, 218267, 654801, 904249, 2712747, 6329743, 18989229]

約数ペア:

[(1, 18989229), (3, 6329743), (7, 2712747), (21, 904249), (29, 654801), (87, 218267), (203, 93543), (609, 31181)]