21114960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1020

約数の個数: 80

約数和(自身を含む): 66204096

約数和(自身を除く): 45089136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 907, 970, 1164, 1455, 1552, 1814, 1940, 2328, 2721, 2910, 3628, 3880, 4535, 4656, 5442, 5820, 7256, 7760, 9070, 10884, 11640, 13605, 14512, 18140, 21768, 23280, 27210, 36280, 43536, 54420, 72560, 87979, 108840, 175958, 217680, 263937, 351916, 439895, 527874, 703832, 879790, 1055748, 1319685, 1407664, 1759580, 2111496, 2639370, 3519160, 4222992, 5278740, 7038320, 10557480, 21114960]

約数ペア:

[(1, 21114960), (2, 10557480), (3, 7038320), (4, 5278740), (5, 4222992), (6, 3519160), (8, 2639370), (10, 2111496), (12, 1759580), (15, 1407664), (16, 1319685), (20, 1055748), (24, 879790), (30, 703832), (40, 527874), (48, 439895), (60, 351916), (80, 263937), (97, 217680), (120, 175958), (194, 108840), (240, 87979), (291, 72560), (388, 54420), (485, 43536), (582, 36280), (776, 27210), (907, 23280), (970, 21768), (1164, 18140), (1455, 14512), (1552, 13605), (1814, 11640), (1940, 10884), (2328, 9070), (2721, 7760), (2910, 7256), (3628, 5820), (3880, 5442), (4535, 4656)]