21522900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 73356416

約数和(自身を除く): 51833516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 37, 42, 50, 60, 70, 74, 75, 84, 100, 105, 111, 140, 148, 150, 175, 185, 210, 222, 259, 277, 300, 350, 370, 420, 444, 518, 525, 554, 555, 700, 740, 777, 831, 925, 1036, 1050, 1108, 1110, 1295, 1385, 1554, 1662, 1850, 1939, 2100, 2220, 2590, 2770, 2775, 3108, 3324, 3700, 3878, 3885, 4155, 5180, 5540, 5550, 5817, 6475, 6925, 7756, 7770, 8310, 9695, 10249, 11100, 11634, 12950, 13850, 15540, 16620, 19390, 19425, 20498, 20775, 23268, 25900, 27700, 29085, 30747, 38780, 38850, 40996, 41550, 48475, 51245, 58170, 61494, 71743, 77700, 83100, 96950, 102490, 116340, 122988, 143486, 145425, 153735, 193900, 204980, 215229, 256225, 286972, 290850, 307470, 358715, 430458, 512450, 581700, 614940, 717430, 768675, 860916, 1024900, 1076145, 1434860, 1537350, 1793575, 2152290, 3074700, 3587150, 4304580, 5380725, 7174300, 10761450, 21522900]

約数ペア:

[(1, 21522900), (2, 10761450), (3, 7174300), (4, 5380725), (5, 4304580), (6, 3587150), (7, 3074700), (10, 2152290), (12, 1793575), (14, 1537350), (15, 1434860), (20, 1076145), (21, 1024900), (25, 860916), (28, 768675), (30, 717430), (35, 614940), (37, 581700), (42, 512450), (50, 430458), (60, 358715), (70, 307470), (74, 290850), (75, 286972), (84, 256225), (100, 215229), (105, 204980), (111, 193900), (140, 153735), (148, 145425), (150, 143486), (175, 122988), (185, 116340), (210, 102490), (222, 96950), (259, 83100), (277, 77700), (300, 71743), (350, 61494), (370, 58170), (420, 51245), (444, 48475), (518, 41550), (525, 40996), (554, 38850), (555, 38780), (700, 30747), (740, 29085), (777, 27700), (831, 25900), (925, 23268), (1036, 20775), (1050, 20498), (1108, 19425), (1110, 19390), (1295, 16620), (1385, 15540), (1554, 13850), (1662, 12950), (1850, 11634), (1939, 11100), (2100, 10249), (2220, 9695), (2590, 8310), (2770, 7770), (2775, 7756), (3108, 6925), (3324, 6475), (3700, 5817), (3878, 5550), (3885, 5540), (4155, 5180)]