19902448

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{33619}}^1$

素因数の和:33664

約数の個数: 20

約数和(自身を含む): 39604360

約数和(自身を除く): 19701912

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 33619, 67238, 134476, 268952, 537904, 1243903, 2487806, 4975612, 9951224, 19902448]

約数ペア:

[(1, 19902448), (2, 9951224), (4, 4975612), (8, 2487806), (16, 1243903), (37, 537904), (74, 268952), (148, 134476), (296, 67238), (592, 33619)]