20896808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8087}}^1$

素因数の和:8129

約数の個数: 32

約数和(自身を含む): 43675200

約数和(自身を除く): 22778392

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8087, 16174, 32348, 64696, 137479, 153653, 274958, 307306, 549916, 614612, 1099832, 1229224, 2612101, 5224202, 10448404, 20896808]

約数ペア:

[(1, 20896808), (2, 10448404), (4, 5224202), (8, 2612101), (17, 1229224), (19, 1099832), (34, 614612), (38, 549916), (68, 307306), (76, 274958), (136, 153653), (152, 137479), (323, 64696), (646, 32348), (1292, 16174), (2584, 8087)]