21078657

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2417}}^1$

素因数の和:2462

約数の個数: 32

約数和(自身を含む): 34819200

約数和(自身を除く): 13740543

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 323, 459, 513, 969, 2417, 2907, 7251, 8721, 21753, 41089, 45923, 65259, 123267, 137769, 369801, 413307, 780691, 1109403, 1239921, 2342073, 7026219, 21078657]

約数ペア:

[(1, 21078657), (3, 7026219), (9, 2342073), (17, 1239921), (19, 1109403), (27, 780691), (51, 413307), (57, 369801), (153, 137769), (171, 123267), (323, 65259), (459, 45923), (513, 41089), (969, 21753), (2417, 8721), (2907, 7251)]