19124144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{91943}}^1$

素因数の和:91964

約数の個数: 20

約数和(自身を含む): 39903696

約数和(自身を除く): 20779552

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 91943, 183886, 367772, 735544, 1195259, 1471088, 2390518, 4781036, 9562072, 19124144]

約数ペア:

[(1, 19124144), (2, 9562072), (4, 4781036), (8, 2390518), (13, 1471088), (16, 1195259), (26, 735544), (52, 367772), (104, 183886), (208, 91943)]