664906767

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 1076797440

約数和(自身を除く): 411890673

約数列:

[1, 3, 7, 19, 21, 57, 133, 229, 361, 383, 399, 687, 1083, 1149, 1603, 2527, 2681, 4351, 4809, 7277, 7581, 8043, 13053, 21831, 30457, 50939, 82669, 87707, 91371, 138263, 152817, 248007, 263121, 414789, 578683, 613949, 967841, 1666433, 1736049, 1841847, 2903523, 4999299, 11665031, 31662227, 34995093, 94986681, 221635589, 664906767]

約数ペア:

[(1, 664906767), (3, 221635589), (7, 94986681), (19, 34995093), (21, 31662227), (57, 11665031), (133, 4999299), (229, 2903523), (361, 1841847), (383, 1736049), (399, 1666433), (687, 967841), (1083, 613949), (1149, 578683), (1603, 414789), (2527, 263121), (2681, 248007), (4351, 152817), (4809, 138263), (7277, 91371), (7581, 87707), (8043, 82669), (13053, 50939), (21831, 30457)]