21185934

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6551}}^1$

素因数の和:6581

約数の個数: 48

約数和(自身を含む): 53778816

約数和(自身を除く): 32592882

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 147, 154, 231, 294, 462, 539, 1078, 1617, 3234, 6551, 13102, 19653, 39306, 45857, 72061, 91714, 137571, 144122, 216183, 275142, 320999, 432366, 504427, 641998, 962997, 1008854, 1513281, 1925994, 3026562, 3530989, 7061978, 10592967, 21185934]

約数ペア:

[(1, 21185934), (2, 10592967), (3, 7061978), (6, 3530989), (7, 3026562), (11, 1925994), (14, 1513281), (21, 1008854), (22, 962997), (33, 641998), (42, 504427), (49, 432366), (66, 320999), (77, 275142), (98, 216183), (147, 144122), (154, 137571), (231, 91714), (294, 72061), (462, 45857), (539, 39306), (1078, 19653), (1617, 13102), (3234, 6551)]