21159688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2897}}^1$

素因数の和:2997

約数の個数: 32

約数和(自身を含む): 43817760

約数和(自身を除く): 22658072

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2897, 3652, 5794, 7304, 11588, 23176, 31867, 63734, 127468, 240451, 254936, 480902, 961804, 1923608, 2644961, 5289922, 10579844, 21159688]

約数ペア:

[(1, 21159688), (2, 10579844), (4, 5289922), (8, 2644961), (11, 1923608), (22, 961804), (44, 480902), (83, 254936), (88, 240451), (166, 127468), (332, 63734), (664, 31867), (913, 23176), (1826, 11588), (2897, 7304), (3652, 5794)]