21338790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64663}}^1$

素因数の和:64684

約数の個数: 32

約数和(自身を含む): 55869696

約数和(自身を除く): 34530906

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64663, 129326, 193989, 323315, 387978, 646630, 711293, 969945, 1422586, 1939890, 2133879, 3556465, 4267758, 7112930, 10669395, 21338790]

約数ペア:

[(1, 21338790), (2, 10669395), (3, 7112930), (5, 4267758), (6, 3556465), (10, 2133879), (11, 1939890), (15, 1422586), (22, 969945), (30, 711293), (33, 646630), (55, 387978), (66, 323315), (110, 193989), (165, 129326), (330, 64663)]