21991214

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{50671}}^1$

素因数の和:50711

約数の個数: 16

約数和(自身を含む): 38916096

約数和(自身を除く): 16924882

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 50671, 101342, 354697, 709394, 1570801, 3141602, 10995607, 21991214]

約数ペア:

[(1, 21991214), (2, 10995607), (7, 3141602), (14, 1570801), (31, 709394), (62, 354697), (217, 101342), (434, 50671)]