19740944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72577}}^1$

素因数の和:72602

約数の個数: 20

約数和(自身を含む): 40498524

約数和(自身を除く): 20757580

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72577, 145154, 290308, 580616, 1161232, 1233809, 2467618, 4935236, 9870472, 19740944]

約数ペア:

[(1, 19740944), (2, 9870472), (4, 4935236), (8, 2467618), (16, 1233809), (17, 1161232), (34, 580616), (68, 290308), (136, 145154), (272, 72577)]