21471520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1050

約数の個数: 96

約数和(自身を含む): 61084800

約数和(自身を除く): 39613280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1009, 1064, 1120, 1330, 1520, 2018, 2128, 2660, 3040, 4036, 4256, 5045, 5320, 7063, 8072, 10090, 10640, 14126, 16144, 19171, 20180, 21280, 28252, 32288, 35315, 38342, 40360, 56504, 70630, 76684, 80720, 95855, 113008, 134197, 141260, 153368, 161440, 191710, 226016, 268394, 282520, 306736, 383420, 536788, 565040, 613472, 670985, 766840, 1073576, 1130080, 1341970, 1533680, 2147152, 2683940, 3067360, 4294304, 5367880, 10735760, 21471520]

約数ペア:

[(1, 21471520), (2, 10735760), (4, 5367880), (5, 4294304), (7, 3067360), (8, 2683940), (10, 2147152), (14, 1533680), (16, 1341970), (19, 1130080), (20, 1073576), (28, 766840), (32, 670985), (35, 613472), (38, 565040), (40, 536788), (56, 383420), (70, 306736), (76, 282520), (80, 268394), (95, 226016), (112, 191710), (133, 161440), (140, 153368), (152, 141260), (160, 134197), (190, 113008), (224, 95855), (266, 80720), (280, 76684), (304, 70630), (380, 56504), (532, 40360), (560, 38342), (608, 35315), (665, 32288), (760, 28252), (1009, 21280), (1064, 20180), (1120, 19171), (1330, 16144), (1520, 14126), (2018, 10640), (2128, 10090), (2660, 8072), (3040, 7063), (4036, 5320), (4256, 5045)]