2181699

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 3516240

約数和(自身を除く): 1334541

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 643, 1131, 1929, 3393, 5787, 8359, 18647, 25077, 55941, 75231, 167823, 242411, 727233, 2181699]

約数ペア:

[(1, 2181699), (3, 727233), (9, 242411), (13, 167823), (29, 75231), (39, 55941), (87, 25077), (117, 18647), (261, 8359), (377, 5787), (643, 3393), (1131, 1929)]