21654532

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 20681468

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 79, 116, 139, 158, 278, 316, 493, 556, 986, 1343, 1972, 2291, 2363, 2686, 4031, 4582, 4726, 5372, 8062, 9164, 9452, 10981, 16124, 21962, 38947, 43924, 68527, 77894, 137054, 155788, 186677, 274108, 318449, 373354, 636898, 746708, 1273796, 5413633, 10827266, 21654532]

約数ペア:

[(1, 21654532), (2, 10827266), (4, 5413633), (17, 1273796), (29, 746708), (34, 636898), (58, 373354), (68, 318449), (79, 274108), (116, 186677), (139, 155788), (158, 137054), (278, 77894), (316, 68527), (493, 43924), (556, 38947), (986, 21962), (1343, 16124), (1972, 10981), (2291, 9452), (2363, 9164), (2686, 8062), (4031, 5372), (4582, 4726)]