21167249454

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{424687}}^1$

素因数の和:424782

約数の個数: 64

約数和(自身を含む): 51370260480

約数和(自身を除く): 30203011026

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 426, 639, 702, 923, 1278, 1846, 1917, 2769, 3834, 5538, 8307, 16614, 24921, 49842, 424687, 849374, 1274061, 2548122, 3822183, 5520931, 7644366, 11041862, 11466549, 16562793, 22933098, 30152777, 33125586, 49688379, 60305554, 90458331, 99376758, 149065137, 180916662, 271374993, 298130274, 391986101, 542749986, 783972202, 814124979, 1175958303, 1628249958, 2351916606, 3527874909, 7055749818, 10583624727, 21167249454]

約数ペア:

[(1, 21167249454), (2, 10583624727), (3, 7055749818), (6, 3527874909), (9, 2351916606), (13, 1628249958), (18, 1175958303), (26, 814124979), (27, 783972202), (39, 542749986), (54, 391986101), (71, 298130274), (78, 271374993), (117, 180916662), (142, 149065137), (213, 99376758), (234, 90458331), (351, 60305554), (426, 49688379), (639, 33125586), (702, 30152777), (923, 22933098), (1278, 16562793), (1846, 11466549), (1917, 11041862), (2769, 7644366), (3834, 5520931), (5538, 3822183), (8307, 2548122), (16614, 1274061), (24921, 849374), (49842, 424687)]