21471758

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2168

約数の個数: 32

約数和(自身を含む): 40773888

約数和(自身を除く): 19302130

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 134, 154, 469, 737, 938, 1474, 2081, 4162, 5159, 10318, 14567, 22891, 29134, 45782, 139427, 160237, 278854, 320474, 975989, 1533697, 1951978, 3067394, 10735879, 21471758]

約数ペア:

[(1, 21471758), (2, 10735879), (7, 3067394), (11, 1951978), (14, 1533697), (22, 975989), (67, 320474), (77, 278854), (134, 160237), (154, 139427), (469, 45782), (737, 29134), (938, 22891), (1474, 14567), (2081, 10318), (4162, 5159)]