21449043

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 42282240

約数和(自身を除く): 20833197

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 81, 99, 133, 171, 181, 189, 209, 231, 297, 399, 513, 543, 567, 627, 693, 891, 1197, 1267, 1463, 1539, 1629, 1881, 1991, 2079, 3439, 3591, 3801, 4389, 4887, 5643, 5973, 6237, 10317, 10773, 11403, 13167, 13937, 14661, 16929, 17919, 24073, 30951, 34209, 37829, 39501, 41811, 53757, 72219, 92853, 102627, 113487, 118503, 125433, 161271, 216657, 264803, 278559, 340461, 376299, 649971, 794409, 1021383, 1128897, 1949913, 2383227, 3064149, 7149681, 21449043]

約数ペア:

[(1, 21449043), (3, 7149681), (7, 3064149), (9, 2383227), (11, 1949913), (19, 1128897), (21, 1021383), (27, 794409), (33, 649971), (57, 376299), (63, 340461), (77, 278559), (81, 264803), (99, 216657), (133, 161271), (171, 125433), (181, 118503), (189, 113487), (209, 102627), (231, 92853), (297, 72219), (399, 53757), (513, 41811), (543, 39501), (567, 37829), (627, 34209), (693, 30951), (891, 24073), (1197, 17919), (1267, 16929), (1463, 14661), (1539, 13937), (1629, 13167), (1881, 11403), (1991, 10773), (2079, 10317), (3439, 6237), (3591, 5973), (3801, 5643), (4389, 4887)]