21020384

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:496

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 33411616

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 224, 266, 304, 308, 352, 418, 449, 532, 608, 616, 836, 898, 1064, 1232, 1463, 1672, 1796, 2128, 2464, 2926, 3143, 3344, 3592, 4256, 4939, 5852, 6286, 6688, 7184, 8531, 9878, 11704, 12572, 14368, 17062, 19756, 23408, 25144, 34124, 34573, 39512, 46816, 50288, 59717, 68248, 69146, 79024, 93841, 100576, 119434, 136496, 138292, 158048, 187682, 238868, 272992, 276584, 375364, 477736, 553168, 656887, 750728, 955472, 1106336, 1313774, 1501456, 1910944, 2627548, 3002912, 5255096, 10510192, 21020384]

約数ペア:

[(1, 21020384), (2, 10510192), (4, 5255096), (7, 3002912), (8, 2627548), (11, 1910944), (14, 1501456), (16, 1313774), (19, 1106336), (22, 955472), (28, 750728), (32, 656887), (38, 553168), (44, 477736), (56, 375364), (76, 276584), (77, 272992), (88, 238868), (112, 187682), (133, 158048), (152, 138292), (154, 136496), (176, 119434), (209, 100576), (224, 93841), (266, 79024), (304, 69146), (308, 68248), (352, 59717), (418, 50288), (449, 46816), (532, 39512), (608, 34573), (616, 34124), (836, 25144), (898, 23408), (1064, 19756), (1232, 17062), (1463, 14368), (1672, 12572), (1796, 11704), (2128, 9878), (2464, 8531), (2926, 7184), (3143, 6688), (3344, 6286), (3592, 5852), (4256, 4939)]