21400128

素因数分解:

$2^6\times 3^2\times {\mathrm{53}}^1\times {\mathrm{701}}^1$

素因数の和:772

約数の個数: 84

約数和(自身を含む): 62586108

約数和(自身を除く): 41185980

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 64, 72, 96, 106, 144, 159, 192, 212, 288, 318, 424, 477, 576, 636, 701, 848, 954, 1272, 1402, 1696, 1908, 2103, 2544, 2804, 3392, 3816, 4206, 5088, 5608, 6309, 7632, 8412, 10176, 11216, 12618, 15264, 16824, 22432, 25236, 30528, 33648, 37153, 44864, 50472, 67296, 74306, 100944, 111459, 134592, 148612, 201888, 222918, 297224, 334377, 403776, 445836, 594448, 668754, 891672, 1188896, 1337508, 1783344, 2377792, 2675016, 3566688, 5350032, 7133376, 10700064, 21400128]

約数ペア:

[(1, 21400128), (2, 10700064), (3, 7133376), (4, 5350032), (6, 3566688), (8, 2675016), (9, 2377792), (12, 1783344), (16, 1337508), (18, 1188896), (24, 891672), (32, 668754), (36, 594448), (48, 445836), (53, 403776), (64, 334377), (72, 297224), (96, 222918), (106, 201888), (144, 148612), (159, 134592), (192, 111459), (212, 100944), (288, 74306), (318, 67296), (424, 50472), (477, 44864), (576, 37153), (636, 33648), (701, 30528), (848, 25236), (954, 22432), (1272, 16824), (1402, 15264), (1696, 12618), (1908, 11216), (2103, 10176), (2544, 8412), (2804, 7632), (3392, 6309), (3816, 5608), (4206, 5088)]