21097500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 120

約数和(自身を含む): 64291920

約数和(自身を除く): 43194420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 50, 58, 60, 75, 87, 97, 100, 116, 125, 145, 150, 174, 194, 250, 290, 291, 300, 348, 375, 388, 435, 485, 500, 580, 582, 625, 725, 750, 870, 970, 1164, 1250, 1450, 1455, 1500, 1740, 1875, 1940, 2175, 2425, 2500, 2813, 2900, 2910, 3625, 3750, 4350, 4850, 5626, 5820, 7250, 7275, 7500, 8439, 8700, 9700, 10875, 11252, 12125, 14065, 14500, 14550, 16878, 18125, 21750, 24250, 28130, 29100, 33756, 36250, 36375, 42195, 43500, 48500, 54375, 56260, 60625, 70325, 72500, 72750, 84390, 108750, 121250, 140650, 145500, 168780, 181875, 210975, 217500, 242500, 281300, 351625, 363750, 421950, 703250, 727500, 843900, 1054875, 1406500, 1758125, 2109750, 3516250, 4219500, 5274375, 7032500, 10548750, 21097500]

約数ペア:

[(1, 21097500), (2, 10548750), (3, 7032500), (4, 5274375), (5, 4219500), (6, 3516250), (10, 2109750), (12, 1758125), (15, 1406500), (20, 1054875), (25, 843900), (29, 727500), (30, 703250), (50, 421950), (58, 363750), (60, 351625), (75, 281300), (87, 242500), (97, 217500), (100, 210975), (116, 181875), (125, 168780), (145, 145500), (150, 140650), (174, 121250), (194, 108750), (250, 84390), (290, 72750), (291, 72500), (300, 70325), (348, 60625), (375, 56260), (388, 54375), (435, 48500), (485, 43500), (500, 42195), (580, 36375), (582, 36250), (625, 33756), (725, 29100), (750, 28130), (870, 24250), (970, 21750), (1164, 18125), (1250, 16878), (1450, 14550), (1455, 14500), (1500, 14065), (1740, 12125), (1875, 11252), (1940, 10875), (2175, 9700), (2425, 8700), (2500, 8439), (2813, 7500), (2900, 7275), (2910, 7250), (3625, 5820), (3750, 5626), (4350, 4850)]