21411900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:700

約数の個数: 108

約数和(自身を含む): 69035512

約数和(自身を除く): 47623612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 37, 45, 50, 60, 74, 75, 90, 100, 111, 148, 150, 180, 185, 222, 225, 300, 333, 370, 444, 450, 555, 643, 666, 740, 900, 925, 1110, 1286, 1332, 1665, 1850, 1929, 2220, 2572, 2775, 3215, 3330, 3700, 3858, 5550, 5787, 6430, 6660, 7716, 8325, 9645, 11100, 11574, 12860, 16075, 16650, 19290, 23148, 23791, 28935, 32150, 33300, 38580, 47582, 48225, 57870, 64300, 71373, 95164, 96450, 115740, 118955, 142746, 144675, 192900, 214119, 237910, 285492, 289350, 356865, 428238, 475820, 578700, 594775, 713730, 856476, 1070595, 1189550, 1427460, 1784325, 2141190, 2379100, 3568650, 4282380, 5352975, 7137300, 10705950, 21411900]

約数ペア:

[(1, 21411900), (2, 10705950), (3, 7137300), (4, 5352975), (5, 4282380), (6, 3568650), (9, 2379100), (10, 2141190), (12, 1784325), (15, 1427460), (18, 1189550), (20, 1070595), (25, 856476), (30, 713730), (36, 594775), (37, 578700), (45, 475820), (50, 428238), (60, 356865), (74, 289350), (75, 285492), (90, 237910), (100, 214119), (111, 192900), (148, 144675), (150, 142746), (180, 118955), (185, 115740), (222, 96450), (225, 95164), (300, 71373), (333, 64300), (370, 57870), (444, 48225), (450, 47582), (555, 38580), (643, 33300), (666, 32150), (740, 28935), (900, 23791), (925, 23148), (1110, 19290), (1286, 16650), (1332, 16075), (1665, 12860), (1850, 11574), (1929, 11100), (2220, 9645), (2572, 8325), (2775, 7716), (3215, 6660), (3330, 6430), (3700, 5787), (3858, 5550)]