621385917

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{647}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 895795200

約数和(自身を除く): 274409283

約数列:

[1, 3, 23, 31, 69, 93, 449, 647, 713, 1347, 1941, 2139, 10327, 13919, 14881, 20057, 30981, 41757, 44643, 60171, 290503, 320137, 461311, 871509, 960411, 1383933, 6681569, 9005593, 20044707, 27016779, 207128639, 621385917]

約数ペア:

[(1, 621385917), (3, 207128639), (23, 27016779), (31, 20044707), (69, 9005593), (93, 6681569), (449, 1383933), (647, 960411), (713, 871509), (1347, 461311), (1941, 320137), (2139, 290503), (10327, 60171), (13919, 44643), (14881, 41757), (20057, 30981)]