20974328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8117}}^1$

素因数の和:8159

約数の個数: 32

約数和(自身を含む): 43837200

約数和(自身を除く): 22862872

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8117, 16234, 32468, 64936, 137989, 154223, 275978, 308446, 551956, 616892, 1103912, 1233784, 2621791, 5243582, 10487164, 20974328]

約数ペア:

[(1, 20974328), (2, 10487164), (4, 5243582), (8, 2621791), (17, 1233784), (19, 1103912), (34, 616892), (38, 551956), (68, 308446), (76, 275978), (136, 154223), (152, 137989), (323, 64936), (646, 32468), (1292, 16234), (2584, 8117)]