21060284

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 45803520

約数和(自身を除く): 24743236

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 1277, 2356, 2554, 4123, 5108, 8246, 8939, 16492, 17878, 24263, 35756, 39587, 48526, 79174, 97052, 158348, 169841, 277109, 339682, 554218, 679364, 752153, 1108436, 1504306, 3008612, 5265071, 10530142, 21060284]

約数ペア:

[(1, 21060284), (2, 10530142), (4, 5265071), (7, 3008612), (14, 1504306), (19, 1108436), (28, 752153), (31, 679364), (38, 554218), (62, 339682), (76, 277109), (124, 169841), (133, 158348), (217, 97052), (266, 79174), (434, 48526), (532, 39587), (589, 35756), (868, 24263), (1178, 17878), (1277, 16492), (2356, 8939), (2554, 8246), (4123, 5108)]