20739448

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{38693}}^1$

素因数の和:38766

約数の個数: 16

約数和(自身を含む): 39467880

約数和(自身を除く): 18728432

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 38693, 77386, 154772, 309544, 2592431, 5184862, 10369724, 20739448]

約数ペア:

[(1, 20739448), (2, 10369724), (4, 5184862), (8, 2592431), (67, 309544), (134, 154772), (268, 77386), (536, 38693)]