21167377

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 27059648

約数和(自身を除く): 5892271

約数列:

[1, 7, 11, 67, 77, 121, 373, 469, 737, 847, 2611, 4103, 5159, 8107, 24991, 28721, 45133, 56749, 174937, 274901, 315931, 1924307, 3023911, 21167377]

約数ペア:

[(1, 21167377), (7, 3023911), (11, 1924307), (67, 315931), (77, 274901), (121, 174937), (373, 56749), (469, 45133), (737, 28721), (847, 24991), (2611, 8107), (4103, 5159)]