27981009

素因数分解:

$3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{947}}^1$

素因数の和:1034

約数の個数: 36

約数和(自身を含む): 47767824

約数和(自身を除く): 19786815

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 147, 201, 441, 469, 603, 947, 1407, 2841, 3283, 4221, 6629, 8523, 9849, 19887, 29547, 46403, 59661, 63449, 139209, 190347, 417627, 444143, 571041, 1332429, 3109001, 3997287, 9327003, 27981009]

約数ペア:

[(1, 27981009), (3, 9327003), (7, 3997287), (9, 3109001), (21, 1332429), (49, 571041), (63, 444143), (67, 417627), (147, 190347), (201, 139209), (441, 63449), (469, 59661), (603, 46403), (947, 29547), (1407, 19887), (2841, 9849), (3283, 8523), (4221, 6629)]