3997287

素因数分解:

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

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 6704256

約数和(自身を除く): 2706969

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 947, 1407, 2841, 4221, 6629, 8523, 19887, 59661, 63449, 190347, 444143, 571041, 1332429, 3997287]

約数ペア:

[(1, 3997287), (3, 1332429), (7, 571041), (9, 444143), (21, 190347), (63, 63449), (67, 59661), (201, 19887), (469, 8523), (603, 6629), (947, 4221), (1407, 2841)]