21271824

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:517

約数の個数: 120

約数和(自身を含む): 69638400

約数和(自身を除く): 48366576

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 47, 48, 56, 63, 72, 84, 94, 112, 126, 141, 144, 168, 188, 252, 282, 329, 336, 376, 423, 449, 504, 564, 658, 752, 846, 898, 987, 1008, 1128, 1316, 1347, 1692, 1796, 1974, 2256, 2632, 2694, 2961, 3143, 3384, 3592, 3948, 4041, 5264, 5388, 5922, 6286, 6768, 7184, 7896, 8082, 9429, 10776, 11844, 12572, 15792, 16164, 18858, 21103, 21552, 23688, 25144, 28287, 32328, 37716, 42206, 47376, 50288, 56574, 63309, 64656, 75432, 84412, 113148, 126618, 147721, 150864, 168824, 189927, 226296, 253236, 295442, 337648, 379854, 443163, 452592, 506472, 590884, 759708, 886326, 1012944, 1181768, 1329489, 1519416, 1772652, 2363536, 2658978, 3038832, 3545304, 5317956, 7090608, 10635912, 21271824]

約数ペア:

[(1, 21271824), (2, 10635912), (3, 7090608), (4, 5317956), (6, 3545304), (7, 3038832), (8, 2658978), (9, 2363536), (12, 1772652), (14, 1519416), (16, 1329489), (18, 1181768), (21, 1012944), (24, 886326), (28, 759708), (36, 590884), (42, 506472), (47, 452592), (48, 443163), (56, 379854), (63, 337648), (72, 295442), (84, 253236), (94, 226296), (112, 189927), (126, 168824), (141, 150864), (144, 147721), (168, 126618), (188, 113148), (252, 84412), (282, 75432), (329, 64656), (336, 63309), (376, 56574), (423, 50288), (449, 47376), (504, 42206), (564, 37716), (658, 32328), (752, 28287), (846, 25144), (898, 23688), (987, 21552), (1008, 21103), (1128, 18858), (1316, 16164), (1347, 15792), (1692, 12572), (1796, 11844), (1974, 10776), (2256, 9429), (2632, 8082), (2694, 7896), (2961, 7184), (3143, 6768), (3384, 6286), (3592, 5922), (3948, 5388), (4041, 5264)]