21146368

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 46137168

約数和(自身を除く): 24990800

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 113, 128, 136, 172, 226, 256, 272, 344, 452, 544, 688, 731, 904, 1088, 1376, 1462, 1808, 1921, 2176, 2752, 2924, 3616, 3842, 4352, 4859, 5504, 5848, 7232, 7684, 9718, 11008, 11696, 14464, 15368, 19436, 23392, 28928, 30736, 38872, 46784, 61472, 77744, 82603, 93568, 122944, 155488, 165206, 187136, 245888, 310976, 330412, 491776, 621952, 660824, 1243904, 1321648, 2643296, 5286592, 10573184, 21146368]

約数ペア:

[(1, 21146368), (2, 10573184), (4, 5286592), (8, 2643296), (16, 1321648), (17, 1243904), (32, 660824), (34, 621952), (43, 491776), (64, 330412), (68, 310976), (86, 245888), (113, 187136), (128, 165206), (136, 155488), (172, 122944), (226, 93568), (256, 82603), (272, 77744), (344, 61472), (452, 46784), (544, 38872), (688, 30736), (731, 28928), (904, 23392), (1088, 19436), (1376, 15368), (1462, 14464), (1808, 11696), (1921, 11008), (2176, 9718), (2752, 7684), (2924, 7232), (3616, 5848), (3842, 5504), (4352, 4859)]