19231664

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27953}}^1$

素因数の和:28004

約数の個数: 20

約数和(自身を含む): 38129256

約数和(自身を除く): 18897592

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27953, 55906, 111812, 223624, 447248, 1201979, 2403958, 4807916, 9615832, 19231664]

約数ペア:

[(1, 19231664), (2, 9615832), (4, 4807916), (8, 2403958), (16, 1201979), (43, 447248), (86, 223624), (172, 111812), (344, 55906), (688, 27953)]