21497880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5779}}^1$

素因数の和:5824

約数の個数: 64

約数和(自身を含む): 66585600

約数和(自身を除く): 45087720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5779, 11558, 17337, 23116, 28895, 34674, 46232, 57790, 69348, 86685, 115580, 138696, 173370, 179149, 231160, 346740, 358298, 537447, 693480, 716596, 895745, 1074894, 1433192, 1791490, 2149788, 2687235, 3582980, 4299576, 5374470, 7165960, 10748940, 21497880]

約数ペア:

[(1, 21497880), (2, 10748940), (3, 7165960), (4, 5374470), (5, 4299576), (6, 3582980), (8, 2687235), (10, 2149788), (12, 1791490), (15, 1433192), (20, 1074894), (24, 895745), (30, 716596), (31, 693480), (40, 537447), (60, 358298), (62, 346740), (93, 231160), (120, 179149), (124, 173370), (155, 138696), (186, 115580), (248, 86685), (310, 69348), (372, 57790), (465, 46232), (620, 34674), (744, 28895), (930, 23116), (1240, 17337), (1860, 11558), (3720, 5779)]