21225616

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4721}}^1$

素因数の和:5010

約数の個数: 20

約数和(自身を含む): 41279724

約数和(自身を除く): 20054108

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4721, 9442, 18884, 37768, 75536, 1326601, 2653202, 5306404, 10612808, 21225616]

約数ペア:

[(1, 21225616), (2, 10612808), (4, 5306404), (8, 2653202), (16, 1326601), (281, 75536), (562, 37768), (1124, 18884), (2248, 9442), (4496, 4721)]