21573303

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 32409600

約数和(自身を除く): 10836297

約数列:

[1, 3, 19, 29, 31, 57, 87, 93, 421, 551, 589, 899, 1263, 1653, 1767, 2697, 7999, 12209, 13051, 17081, 23997, 36627, 39153, 51243, 231971, 247969, 378479, 695913, 743907, 1135437, 7191101, 21573303]

約数ペア:

[(1, 21573303), (3, 7191101), (19, 1135437), (29, 743907), (31, 695913), (57, 378479), (87, 247969), (93, 231971), (421, 51243), (551, 39153), (589, 36627), (899, 23997), (1263, 17081), (1653, 13051), (1767, 12209), (2697, 7999)]