21601239

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{881}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 31497984

約数和(自身を除く): 9896745

約数列:

[1, 3, 11, 33, 743, 881, 2229, 2643, 8173, 9691, 24519, 29073, 654583, 1963749, 7200413, 21601239]

約数ペア:

[(1, 21601239), (3, 7200413), (11, 1963749), (33, 654583), (743, 29073), (881, 24519), (2229, 9691), (2643, 8173)]