21374500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 55351296

約数和(自身を除く): 33976796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 125, 140, 155, 175, 197, 217, 250, 310, 350, 394, 434, 500, 620, 700, 775, 788, 868, 875, 985, 1085, 1379, 1550, 1750, 1970, 2170, 2758, 3100, 3500, 3875, 3940, 4340, 4925, 5425, 5516, 6107, 6895, 7750, 9850, 10850, 12214, 13790, 15500, 19700, 21700, 24428, 24625, 27125, 27580, 30535, 34475, 42749, 49250, 54250, 61070, 68950, 85498, 98500, 108500, 122140, 137900, 152675, 170996, 172375, 213745, 305350, 344750, 427490, 610700, 689500, 763375, 854980, 1068725, 1526750, 2137450, 3053500, 4274900, 5343625, 10687250, 21374500]

約数ペア:

[(1, 21374500), (2, 10687250), (4, 5343625), (5, 4274900), (7, 3053500), (10, 2137450), (14, 1526750), (20, 1068725), (25, 854980), (28, 763375), (31, 689500), (35, 610700), (50, 427490), (62, 344750), (70, 305350), (100, 213745), (124, 172375), (125, 170996), (140, 152675), (155, 137900), (175, 122140), (197, 108500), (217, 98500), (250, 85498), (310, 68950), (350, 61070), (394, 54250), (434, 49250), (500, 42749), (620, 34475), (700, 30535), (775, 27580), (788, 27125), (868, 24625), (875, 24428), (985, 21700), (1085, 19700), (1379, 15500), (1550, 13790), (1750, 12214), (1970, 10850), (2170, 9850), (2758, 7750), (3100, 6895), (3500, 6107), (3875, 5516), (3940, 5425), (4340, 4925)]