19886248

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 18337112

約数列:

[1, 2, 4, 8, 71, 142, 157, 223, 284, 314, 446, 568, 628, 892, 1256, 1784, 11147, 15833, 22294, 31666, 35011, 44588, 63332, 70022, 89176, 126664, 140044, 280088, 2485781, 4971562, 9943124, 19886248]

約数ペア:

[(1, 19886248), (2, 9943124), (4, 4971562), (8, 2485781), (71, 280088), (142, 140044), (157, 126664), (223, 89176), (284, 70022), (314, 63332), (446, 44588), (568, 35011), (628, 31666), (892, 22294), (1256, 15833), (1784, 11147)]