19796469

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2057

約数の個数: 32

約数和(自身を含む): 33690624

約数和(自身を除く): 13894155

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 1993, 3311, 5979, 9933, 13951, 21923, 41853, 65769, 85699, 153461, 257097, 460383, 599893, 942689, 1799679, 2828067, 6598823, 19796469]

約数ペア:

[(1, 19796469), (3, 6598823), (7, 2828067), (11, 1799679), (21, 942689), (33, 599893), (43, 460383), (77, 257097), (129, 153461), (231, 85699), (301, 65769), (473, 41853), (903, 21923), (1419, 13951), (1993, 9933), (3311, 5979)]