19964724

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127979}}^1$

素因数の和:127999

約数の個数: 24

約数和(自身を含む): 50168160

約数和(自身を除く): 30203436

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 127979, 255958, 383937, 511916, 767874, 1535748, 1663727, 3327454, 4991181, 6654908, 9982362, 19964724]

約数ペア:

[(1, 19964724), (2, 9982362), (3, 6654908), (4, 4991181), (6, 3327454), (12, 1663727), (13, 1535748), (26, 767874), (39, 511916), (52, 383937), (78, 255958), (156, 127979)]