21108416

素因数分解:

$2^6\times 7^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 84

約数和(自身を含む): 50035968

約数和(自身を除く): 28927552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 64, 98, 106, 112, 127, 196, 212, 224, 254, 371, 392, 424, 448, 508, 742, 784, 848, 889, 1016, 1484, 1568, 1696, 1778, 2032, 2597, 2968, 3136, 3392, 3556, 4064, 5194, 5936, 6223, 6731, 7112, 8128, 10388, 11872, 12446, 13462, 14224, 20776, 23744, 24892, 26924, 28448, 41552, 47117, 49784, 53848, 56896, 83104, 94234, 99568, 107696, 166208, 188468, 199136, 215392, 329819, 376936, 398272, 430784, 659638, 753872, 1319276, 1507744, 2638552, 3015488, 5277104, 10554208, 21108416]

約数ペア:

[(1, 21108416), (2, 10554208), (4, 5277104), (7, 3015488), (8, 2638552), (14, 1507744), (16, 1319276), (28, 753872), (32, 659638), (49, 430784), (53, 398272), (56, 376936), (64, 329819), (98, 215392), (106, 199136), (112, 188468), (127, 166208), (196, 107696), (212, 99568), (224, 94234), (254, 83104), (371, 56896), (392, 53848), (424, 49784), (448, 47117), (508, 41552), (742, 28448), (784, 26924), (848, 24892), (889, 23744), (1016, 20776), (1484, 14224), (1568, 13462), (1696, 12446), (1778, 11872), (2032, 10388), (2597, 8128), (2968, 7112), (3136, 6731), (3392, 6223), (3556, 5936), (4064, 5194)]