21228900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{919}}^1$

素因数の和:954

約数の個数: 144

約数和(自身を含む): 76661760

約数和(自身を除く): 55432860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 75, 77, 84, 100, 105, 110, 132, 140, 150, 154, 165, 175, 210, 220, 231, 275, 300, 308, 330, 350, 385, 420, 462, 525, 550, 660, 700, 770, 825, 919, 924, 1050, 1100, 1155, 1540, 1650, 1838, 1925, 2100, 2310, 2757, 3300, 3676, 3850, 4595, 4620, 5514, 5775, 6433, 7700, 9190, 10109, 11028, 11550, 12866, 13785, 18380, 19299, 20218, 22975, 23100, 25732, 27570, 30327, 32165, 38598, 40436, 45950, 50545, 55140, 60654, 64330, 68925, 70763, 77196, 91900, 96495, 101090, 121308, 128660, 137850, 141526, 151635, 160825, 192990, 202180, 212289, 252725, 275700, 283052, 303270, 321650, 353815, 385980, 424578, 482475, 505450, 606540, 643300, 707630, 758175, 849156, 964950, 1010900, 1061445, 1415260, 1516350, 1769075, 1929900, 2122890, 3032700, 3538150, 4245780, 5307225, 7076300, 10614450, 21228900]

約数ペア:

[(1, 21228900), (2, 10614450), (3, 7076300), (4, 5307225), (5, 4245780), (6, 3538150), (7, 3032700), (10, 2122890), (11, 1929900), (12, 1769075), (14, 1516350), (15, 1415260), (20, 1061445), (21, 1010900), (22, 964950), (25, 849156), (28, 758175), (30, 707630), (33, 643300), (35, 606540), (42, 505450), (44, 482475), (50, 424578), (55, 385980), (60, 353815), (66, 321650), (70, 303270), (75, 283052), (77, 275700), (84, 252725), (100, 212289), (105, 202180), (110, 192990), (132, 160825), (140, 151635), (150, 141526), (154, 137850), (165, 128660), (175, 121308), (210, 101090), (220, 96495), (231, 91900), (275, 77196), (300, 70763), (308, 68925), (330, 64330), (350, 60654), (385, 55140), (420, 50545), (462, 45950), (525, 40436), (550, 38598), (660, 32165), (700, 30327), (770, 27570), (825, 25732), (919, 23100), (924, 22975), (1050, 20218), (1100, 19299), (1155, 18380), (1540, 13785), (1650, 12866), (1838, 11550), (1925, 11028), (2100, 10109), (2310, 9190), (2757, 7700), (3300, 6433), (3676, 5775), (3850, 5514), (4595, 4620)]