21132212871

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1\times {\mathrm{1181}}^1$

素因数の和:2364

約数の個数: 64

約数和(自身を含む): 35686490112

約数和(自身を除く): 14554277241

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1091, 1181, 1491, 2343, 3273, 3543, 5467, 7637, 8267, 12001, 12991, 16401, 22911, 24801, 36003, 38973, 77461, 83851, 84007, 90937, 232383, 251553, 252021, 272811, 542227, 586957, 852071, 922361, 1288471, 1626681, 1760871, 2556213, 2767083, 3865413, 5964497, 6456527, 9019297, 14173181, 17893491, 19369581, 27057891, 42519543, 91481441, 99212267, 274444323, 297636801, 640370087, 1006295851, 1921110261, 3018887553, 7044070957, 21132212871]

約数ペア:

[(1, 21132212871), (3, 7044070957), (7, 3018887553), (11, 1921110261), (21, 1006295851), (33, 640370087), (71, 297636801), (77, 274444323), (213, 99212267), (231, 91481441), (497, 42519543), (781, 27057891), (1091, 19369581), (1181, 17893491), (1491, 14173181), (2343, 9019297), (3273, 6456527), (3543, 5964497), (5467, 3865413), (7637, 2767083), (8267, 2556213), (12001, 1760871), (12991, 1626681), (16401, 1288471), (22911, 922361), (24801, 852071), (36003, 586957), (38973, 542227), (77461, 272811), (83851, 252021), (84007, 251553), (90937, 232383)]