3994389

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 7188480

約数和(自身を除く): 3194091

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 71, 133, 141, 171, 213, 329, 399, 423, 497, 639, 893, 987, 1197, 1349, 1491, 2679, 2961, 3337, 4047, 4473, 6251, 8037, 9443, 10011, 12141, 18753, 23359, 28329, 30033, 56259, 63403, 70077, 84987, 190209, 210231, 443821, 570627, 1331463, 3994389]

約数ペア:

[(1, 3994389), (3, 1331463), (7, 570627), (9, 443821), (19, 210231), (21, 190209), (47, 84987), (57, 70077), (63, 63403), (71, 56259), (133, 30033), (141, 28329), (171, 23359), (213, 18753), (329, 12141), (399, 10011), (423, 9443), (497, 8037), (639, 6251), (893, 4473), (987, 4047), (1197, 3337), (1349, 2961), (1491, 2679)]