21616980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4679}}^1$

素因数の和:4709

約数の個数: 96

約数和(自身を含む): 75479040

約数和(自身を除く): 53862060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 4679, 9358, 14037, 18716, 23395, 28074, 32753, 46790, 51469, 56148, 65506, 70185, 93580, 98259, 102938, 131012, 140370, 154407, 163765, 196518, 205876, 257345, 280740, 308814, 327530, 360283, 393036, 491295, 514690, 617628, 655060, 720566, 772035, 982590, 1029380, 1080849, 1441132, 1544070, 1801415, 1965180, 2161698, 3088140, 3602830, 4323396, 5404245, 7205660, 10808490, 21616980]

約数ペア:

[(1, 21616980), (2, 10808490), (3, 7205660), (4, 5404245), (5, 4323396), (6, 3602830), (7, 3088140), (10, 2161698), (11, 1965180), (12, 1801415), (14, 1544070), (15, 1441132), (20, 1080849), (21, 1029380), (22, 982590), (28, 772035), (30, 720566), (33, 655060), (35, 617628), (42, 514690), (44, 491295), (55, 393036), (60, 360283), (66, 327530), (70, 308814), (77, 280740), (84, 257345), (105, 205876), (110, 196518), (132, 163765), (140, 154407), (154, 140370), (165, 131012), (210, 102938), (220, 98259), (231, 93580), (308, 70185), (330, 65506), (385, 56148), (420, 51469), (462, 46790), (660, 32753), (770, 28074), (924, 23395), (1155, 18716), (1540, 14037), (2310, 9358), (4620, 4679)]