19740656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{94907}}^1$

素因数の和:94928

約数の個数: 20

約数和(自身を含む): 41190072

約数和(自身を除く): 21449416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 94907, 189814, 379628, 759256, 1233791, 1518512, 2467582, 4935164, 9870328, 19740656]

約数ペア:

[(1, 19740656), (2, 9870328), (4, 4935164), (8, 2467582), (13, 1518512), (16, 1233791), (26, 759256), (52, 379628), (104, 189814), (208, 94907)]