21359310

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 64364544

約数和(自身を除く): 43005234

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 31, 34, 35, 42, 51, 62, 70, 85, 93, 102, 105, 119, 155, 170, 186, 193, 210, 217, 238, 255, 310, 357, 386, 434, 465, 510, 527, 579, 595, 651, 714, 930, 965, 1054, 1085, 1158, 1190, 1302, 1351, 1581, 1785, 1930, 2170, 2635, 2702, 2895, 3162, 3255, 3281, 3570, 3689, 4053, 5270, 5790, 5983, 6510, 6562, 6755, 7378, 7905, 8106, 9843, 11067, 11966, 13510, 15810, 16405, 17949, 18445, 19686, 20265, 22134, 22967, 29915, 32810, 35898, 36890, 40530, 41881, 45934, 49215, 55335, 59830, 68901, 83762, 89745, 98430, 101711, 110670, 114835, 125643, 137802, 179490, 203422, 209405, 229670, 251286, 305133, 344505, 418810, 508555, 610266, 628215, 689010, 711977, 1017110, 1256430, 1423954, 1525665, 2135931, 3051330, 3559885, 4271862, 7119770, 10679655, 21359310]

約数ペア:

[(1, 21359310), (2, 10679655), (3, 7119770), (5, 4271862), (6, 3559885), (7, 3051330), (10, 2135931), (14, 1525665), (15, 1423954), (17, 1256430), (21, 1017110), (30, 711977), (31, 689010), (34, 628215), (35, 610266), (42, 508555), (51, 418810), (62, 344505), (70, 305133), (85, 251286), (93, 229670), (102, 209405), (105, 203422), (119, 179490), (155, 137802), (170, 125643), (186, 114835), (193, 110670), (210, 101711), (217, 98430), (238, 89745), (255, 83762), (310, 68901), (357, 59830), (386, 55335), (434, 49215), (465, 45934), (510, 41881), (527, 40530), (579, 36890), (595, 35898), (651, 32810), (714, 29915), (930, 22967), (965, 22134), (1054, 20265), (1085, 19686), (1158, 18445), (1190, 17949), (1302, 16405), (1351, 15810), (1581, 13510), (1785, 11966), (1930, 11067), (2170, 9843), (2635, 8106), (2702, 7905), (2895, 7378), (3162, 6755), (3255, 6562), (3281, 6510), (3570, 5983), (3689, 5790), (4053, 5270)]