21313744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70111}}^1$

素因数の和:70138

約数の個数: 20

約数和(自身を含む): 43469440

約数和(自身を除く): 22155696

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70111, 140222, 280444, 560888, 1121776, 1332109, 2664218, 5328436, 10656872, 21313744]

約数ペア:

[(1, 21313744), (2, 10656872), (4, 5328436), (8, 2664218), (16, 1332109), (19, 1121776), (38, 560888), (76, 280444), (152, 140222), (304, 70111)]