211050021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{13103}}^1$

素因数の和:13185

約数の個数: 32

約数和(自身を含む): 352235520

約数和(自身を除く): 141185499

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 2301, 5369, 13103, 16107, 39309, 91721, 170339, 275163, 511017, 773077, 1192373, 2319231, 3577119, 5411539, 10050001, 16234617, 30150003, 70350007, 211050021]

約数ペア:

[(1, 211050021), (3, 70350007), (7, 30150003), (13, 16234617), (21, 10050001), (39, 5411539), (59, 3577119), (91, 2319231), (177, 1192373), (273, 773077), (413, 511017), (767, 275163), (1239, 170339), (2301, 91721), (5369, 39309), (13103, 16107)]