21309614785

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1\times {\mathrm{881}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 26090999424

約数和(自身を除く): 4781384639

約数列:

[1, 5, 101, 211, 227, 505, 881, 1055, 1135, 4405, 21311, 22927, 47897, 88981, 106555, 114635, 185891, 199987, 239485, 444905, 929455, 999935, 4837597, 18774991, 20198687, 24187985, 42197257, 93874955, 100993435, 210986285, 4261922957, 21309614785]

約数ペア:

[(1, 21309614785), (5, 4261922957), (101, 210986285), (211, 100993435), (227, 93874955), (505, 42197257), (881, 24187985), (1055, 20198687), (1135, 18774991), (4405, 4837597), (21311, 999935), (22927, 929455), (47897, 444905), (88981, 239485), (106555, 199987), (114635, 185891)]