21077210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{883}}^1$

素因数の和:939

約数の個数: 64

約数和(自身を含む): 48881664

約数和(自身を除く): 27804454

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 154, 155, 217, 310, 341, 385, 434, 682, 770, 883, 1085, 1705, 1766, 2170, 2387, 3410, 4415, 4774, 6181, 8830, 9713, 11935, 12362, 19426, 23870, 27373, 30905, 48565, 54746, 61810, 67991, 97130, 135982, 136865, 191611, 273730, 301103, 339955, 383222, 602206, 679910, 958055, 1505515, 1916110, 2107721, 3011030, 4215442, 10538605, 21077210]

約数ペア:

[(1, 21077210), (2, 10538605), (5, 4215442), (7, 3011030), (10, 2107721), (11, 1916110), (14, 1505515), (22, 958055), (31, 679910), (35, 602206), (55, 383222), (62, 339955), (70, 301103), (77, 273730), (110, 191611), (154, 136865), (155, 135982), (217, 97130), (310, 67991), (341, 61810), (385, 54746), (434, 48565), (682, 30905), (770, 27373), (883, 23870), (1085, 19426), (1705, 12362), (1766, 11935), (2170, 9713), (2387, 8830), (3410, 6181), (4415, 4774)]