21688256

素因数分解:

$2^6\times {\mathrm{349}}^1\times {\mathrm{971}}^1$

素因数の和:1332

約数の個数: 28

約数和(自身を含む): 43205400

約数和(自身を除く): 21517144

約数列:

[1, 2, 4, 8, 16, 32, 64, 349, 698, 971, 1396, 1942, 2792, 3884, 5584, 7768, 11168, 15536, 22336, 31072, 62144, 338879, 677758, 1355516, 2711032, 5422064, 10844128, 21688256]

約数ペア:

[(1, 21688256), (2, 10844128), (4, 5422064), (8, 2711032), (16, 1355516), (32, 677758), (64, 338879), (349, 62144), (698, 31072), (971, 22336), (1396, 15536), (1942, 11168), (2792, 7768), (3884, 5584)]