21499196

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 38419920

約数和(自身を除く): 16920724

約数列:

[1, 2, 4, 89, 131, 178, 262, 356, 461, 524, 922, 1844, 11659, 23318, 41029, 46636, 60391, 82058, 120782, 164116, 241564, 5374799, 10749598, 21499196]

約数ペア:

[(1, 21499196), (2, 10749598), (4, 5374799), (89, 241564), (131, 164116), (178, 120782), (262, 82058), (356, 60391), (461, 46636), (524, 41029), (922, 23318), (1844, 11659)]