19402677

素因数分解:

$3^2\times 7^2\times {\mathrm{43997}}^1$

素因数の和:44017

約数の個数: 18

約数和(自身を含む): 32602518

約数和(自身を除く): 13199841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43997, 131991, 307979, 395973, 923937, 2155853, 2771811, 6467559, 19402677]

約数ペア:

[(1, 19402677), (3, 6467559), (7, 2771811), (9, 2155853), (21, 923937), (49, 395973), (63, 307979), (147, 131991), (441, 43997)]