21856352

素因数分解:

$2^5\times 7^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:340

約数の個数: 72

約数和(自身を含む): 51193296

約数和(自身を除く): 29336944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 98, 106, 112, 196, 212, 224, 263, 371, 392, 424, 526, 742, 784, 848, 1052, 1484, 1568, 1696, 1841, 2104, 2597, 2968, 3682, 4208, 5194, 5936, 7364, 8416, 10388, 11872, 12887, 13939, 14728, 20776, 25774, 27878, 29456, 41552, 51548, 55756, 58912, 83104, 97573, 103096, 111512, 195146, 206192, 223024, 390292, 412384, 446048, 683011, 780584, 1366022, 1561168, 2732044, 3122336, 5464088, 10928176, 21856352]

約数ペア:

[(1, 21856352), (2, 10928176), (4, 5464088), (7, 3122336), (8, 2732044), (14, 1561168), (16, 1366022), (28, 780584), (32, 683011), (49, 446048), (53, 412384), (56, 390292), (98, 223024), (106, 206192), (112, 195146), (196, 111512), (212, 103096), (224, 97573), (263, 83104), (371, 58912), (392, 55756), (424, 51548), (526, 41552), (742, 29456), (784, 27878), (848, 25774), (1052, 20776), (1484, 14728), (1568, 13939), (1696, 12887), (1841, 11872), (2104, 10388), (2597, 8416), (2968, 7364), (3682, 5936), (4208, 5194)]