21509136

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:429

約数の個数: 120

約数和(自身を含む): 67626624

約数和(自身を除く): 46117488

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 37, 44, 48, 66, 72, 74, 88, 99, 111, 132, 144, 148, 176, 198, 222, 264, 296, 333, 367, 396, 407, 444, 528, 592, 666, 734, 792, 814, 888, 1101, 1221, 1332, 1468, 1584, 1628, 1776, 2202, 2442, 2664, 2936, 3256, 3303, 3663, 4037, 4404, 4884, 5328, 5872, 6512, 6606, 7326, 8074, 8808, 9768, 12111, 13212, 13579, 14652, 16148, 17616, 19536, 24222, 26424, 27158, 29304, 32296, 36333, 40737, 48444, 52848, 54316, 58608, 64592, 72666, 81474, 96888, 108632, 122211, 145332, 149369, 162948, 193776, 217264, 244422, 290664, 298738, 325896, 448107, 488844, 581328, 597476, 651792, 896214, 977688, 1194952, 1344321, 1792428, 1955376, 2389904, 2688642, 3584856, 5377284, 7169712, 10754568, 21509136]

約数ペア:

[(1, 21509136), (2, 10754568), (3, 7169712), (4, 5377284), (6, 3584856), (8, 2688642), (9, 2389904), (11, 1955376), (12, 1792428), (16, 1344321), (18, 1194952), (22, 977688), (24, 896214), (33, 651792), (36, 597476), (37, 581328), (44, 488844), (48, 448107), (66, 325896), (72, 298738), (74, 290664), (88, 244422), (99, 217264), (111, 193776), (132, 162948), (144, 149369), (148, 145332), (176, 122211), (198, 108632), (222, 96888), (264, 81474), (296, 72666), (333, 64592), (367, 58608), (396, 54316), (407, 52848), (444, 48444), (528, 40737), (592, 36333), (666, 32296), (734, 29304), (792, 27158), (814, 26424), (888, 24222), (1101, 19536), (1221, 17616), (1332, 16148), (1468, 14652), (1584, 13579), (1628, 13212), (1776, 12111), (2202, 9768), (2442, 8808), (2664, 8074), (2936, 7326), (3256, 6606), (3303, 6512), (3663, 5872), (4037, 5328), (4404, 4884)]