21013300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2729}}^1$

素因数の和:2761

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 35858060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2729, 3850, 5458, 7700, 10916, 13645, 19103, 27290, 30019, 38206, 54580, 60038, 68225, 76412, 95515, 120076, 136450, 150095, 191030, 210133, 272900, 300190, 382060, 420266, 477575, 600380, 750475, 840532, 955150, 1050665, 1500950, 1910300, 2101330, 3001900, 4202660, 5253325, 10506650, 21013300]

約数ペア:

[(1, 21013300), (2, 10506650), (4, 5253325), (5, 4202660), (7, 3001900), (10, 2101330), (11, 1910300), (14, 1500950), (20, 1050665), (22, 955150), (25, 840532), (28, 750475), (35, 600380), (44, 477575), (50, 420266), (55, 382060), (70, 300190), (77, 272900), (100, 210133), (110, 191030), (140, 150095), (154, 136450), (175, 120076), (220, 95515), (275, 76412), (308, 68225), (350, 60038), (385, 54580), (550, 38206), (700, 30019), (770, 27290), (1100, 19103), (1540, 13645), (1925, 10916), (2729, 7700), (3850, 5458)]