21148160

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{751}}^1$

素因数の和:785

約数の個数: 80

約数和(自身を含む): 55389312

約数和(自身を除く): 34241152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 751, 880, 1280, 1408, 1502, 1760, 2560, 2816, 3004, 3520, 3755, 5632, 6008, 7040, 7510, 8261, 12016, 14080, 15020, 16522, 24032, 28160, 30040, 33044, 41305, 48064, 60080, 66088, 82610, 96128, 120160, 132176, 165220, 192256, 240320, 264352, 330440, 384512, 480640, 528704, 660880, 961280, 1057408, 1321760, 1922560, 2114816, 2643520, 4229632, 5287040, 10574080, 21148160]

約数ペア:

[(1, 21148160), (2, 10574080), (4, 5287040), (5, 4229632), (8, 2643520), (10, 2114816), (11, 1922560), (16, 1321760), (20, 1057408), (22, 961280), (32, 660880), (40, 528704), (44, 480640), (55, 384512), (64, 330440), (80, 264352), (88, 240320), (110, 192256), (128, 165220), (160, 132176), (176, 120160), (220, 96128), (256, 82610), (320, 66088), (352, 60080), (440, 48064), (512, 41305), (640, 33044), (704, 30040), (751, 28160), (880, 24032), (1280, 16522), (1408, 15020), (1502, 14080), (1760, 12016), (2560, 8261), (2816, 7510), (3004, 7040), (3520, 6008), (3755, 5632)]