678210057

素因数分解:

$3^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{20047}}^1$

素因数の和:20242

約数の個数: 32

約数和(自身を含む): 1154764800

約数和(自身を除く): 476554743

約数列:

[1, 3, 7, 9, 21, 27, 63, 179, 189, 537, 1253, 1611, 3759, 4833, 11277, 20047, 33831, 60141, 140329, 180423, 420987, 541269, 1262961, 3588413, 3788883, 10765239, 25118891, 32295717, 75356673, 96887151, 226070019, 678210057]

約数ペア:

[(1, 678210057), (3, 226070019), (7, 96887151), (9, 75356673), (21, 32295717), (27, 25118891), (63, 10765239), (179, 3788883), (189, 3588413), (537, 1262961), (1253, 541269), (1611, 420987), (3759, 180423), (4833, 140329), (11277, 60141), (20047, 33831)]