19973776

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73433}}^1$

素因数の和:73458

約数の個数: 20

約数和(自身を含む): 40976172

約数和(自身を除く): 21002396

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73433, 146866, 293732, 587464, 1174928, 1248361, 2496722, 4993444, 9986888, 19973776]

約数ペア:

[(1, 19973776), (2, 9986888), (4, 4993444), (8, 2496722), (16, 1248361), (17, 1174928), (34, 587464), (68, 293732), (136, 146866), (272, 73433)]