21030865920

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 880

約数和(自身を含む): 84530619360

約数和(自身を除く): 63499753440

約数列:

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約数ペア:

[(1, 21030865920), (2, 10515432960), (3, 7010288640), (4, 5257716480), (5, 4206173184), (6, 3505144320), (8, 2628858240), (9, 2336762880), (10, 2103086592), (12, 1752572160), (15, 1402057728), (16, 1314429120), (17, 1237109760), (18, 1168381440), (19, 1106887680), (20, 1051543296), (24, 876286080), (27, 778920960), (30, 701028864), (32, 657214560), (34, 618554880), (36, 584190720), (38, 553443840), (40, 525771648), (45, 467352576), (48, 438143040), (51, 412369920), (54, 389460480), (57, 368962560), (60, 350514432), (64, 328607280), (68, 309277440), (72, 292095360), (76, 276721920), (80, 262885824), (81, 259640320), (85, 247421952), (90, 233676288), (95, 221377536), (96, 219071520), (102, 206184960), (108, 194730240), (114, 184481280), (120, 175257216), (128, 164303640), (135, 155784192), (136, 154638720), (144, 146047680), (152, 138360960), (153, 137456640), (157, 133954560), (160, 131442912), (162, 129820160), (170, 123710976), (171, 122987520), (180, 116838144), (190, 110688768), (192, 109535760), (204, 103092480), (216, 97365120), (228, 92240640), (240, 87628608), (255, 82473984), (256, 82151820), (270, 77892096), (272, 77319360), (285, 73792512), (288, 73023840), (304, 69180480), (306, 68728320), (314, 66977280), (320, 65721456), (323, 65111040), (324, 64910080), (340, 61855488), (342, 61493760), (360, 58419072), (380, 55344384), (384, 54767880), (405, 51928064), (408, 51546240), (432, 48682560), (456, 46120320), (459, 45818880), (471, 44651520), (480, 43814304), (510, 41236992), (512, 41075910), (513, 40995840), (540, 38946048), (544, 38659680), (570, 36896256), (576, 36511920), (608, 34590240), (612, 34364160), (628, 33488640), (640, 32860728), (646, 32555520), (648, 32455040), (680, 30927744), (684, 30746880), (720, 29209536), (760, 27672192), (765, 27491328), (768, 27383940), (785, 26790912), (810, 25964032), (816, 25773120), (855, 24597504), (864, 24341280), (912, 23060160), (918, 22909440), (942, 22325760), (960, 21907152), (969, 21703680), (1020, 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