19489808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{93701}}^1$

素因数の和:93722

約数の個数: 20

約数和(自身を含む): 40666668

約数和(自身を除く): 21176860

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 93701, 187402, 374804, 749608, 1218113, 1499216, 2436226, 4872452, 9744904, 19489808]

約数ペア:

[(1, 19489808), (2, 9744904), (4, 4872452), (8, 2436226), (13, 1499216), (16, 1218113), (26, 749608), (52, 374804), (104, 187402), (208, 93701)]