19881448

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{941}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 39564000

約数和(自身を除く): 19682552

約数列:

[1, 2, 4, 8, 19, 38, 76, 139, 152, 278, 556, 941, 1112, 1882, 2641, 3764, 5282, 7528, 10564, 17879, 21128, 35758, 71516, 130799, 143032, 261598, 523196, 1046392, 2485181, 4970362, 9940724, 19881448]

約数ペア:

[(1, 19881448), (2, 9940724), (4, 4970362), (8, 2485181), (19, 1046392), (38, 523196), (76, 261598), (139, 143032), (152, 130799), (278, 71516), (556, 35758), (941, 21128), (1112, 17879), (1882, 10564), (2641, 7528), (3764, 5282)]