16021978

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 31334400

約数和(自身を除く): 15312422

約数列:

[1, 2, 7, 14, 19, 29, 31, 38, 58, 62, 67, 133, 134, 203, 217, 266, 406, 434, 469, 551, 589, 899, 938, 1102, 1178, 1273, 1798, 1943, 2077, 2546, 3857, 3886, 4123, 4154, 6293, 7714, 8246, 8911, 12586, 13601, 14539, 17081, 17822, 27202, 29078, 34162, 36917, 39463, 60233, 73834, 78926, 119567, 120466, 239134, 258419, 276241, 421631, 516838, 552482, 843262, 1144427, 2288854, 8010989, 16021978]

約数ペア:

[(1, 16021978), (2, 8010989), (7, 2288854), (14, 1144427), (19, 843262), (29, 552482), (31, 516838), (38, 421631), (58, 276241), (62, 258419), (67, 239134), (133, 120466), (134, 119567), (203, 78926), (217, 73834), (266, 60233), (406, 39463), (434, 36917), (469, 34162), (551, 29078), (589, 27202), (899, 17822), (938, 17081), (1102, 14539), (1178, 13601), (1273, 12586), (1798, 8911), (1943, 8246), (2077, 7714), (2546, 6293), (3857, 4154), (3886, 4123)]