664747209

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{661}}^1$

素因数の和:1007

約数の個数: 64

約数和(自身を含む): 1197319680

約数和(自身を除く): 532572471

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 313, 357, 459, 661, 939, 1071, 1983, 2191, 2817, 3213, 4627, 5321, 5949, 6573, 8451, 11237, 13881, 15963, 17847, 19719, 33711, 37247, 41643, 47889, 59157, 78659, 101133, 111741, 124929, 143667, 206893, 235977, 303399, 335223, 620679, 707931, 1005669, 1448251, 1862037, 2123793, 3517181, 4344753, 5586111, 10551543, 13034259, 24620267, 31654629, 39102777, 73860801, 94963887, 221582403, 664747209]

約数ペア:

[(1, 664747209), (3, 221582403), (7, 94963887), (9, 73860801), (17, 39102777), (21, 31654629), (27, 24620267), (51, 13034259), (63, 10551543), (119, 5586111), (153, 4344753), (189, 3517181), (313, 2123793), (357, 1862037), (459, 1448251), (661, 1005669), (939, 707931), (1071, 620679), (1983, 335223), (2191, 303399), (2817, 235977), (3213, 206893), (4627, 143667), (5321, 124929), (5949, 111741), (6573, 101133), (8451, 78659), (11237, 59157), (13881, 47889), (15963, 41643), (17847, 37247), (19719, 33711)]