21082368

素因数分解:

$2^8\times 3^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 56888608

約数和(自身を除く): 35806240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 97, 128, 192, 194, 256, 283, 291, 384, 388, 566, 582, 768, 776, 849, 1132, 1164, 1552, 1698, 2264, 2328, 3104, 3396, 4528, 4656, 6208, 6792, 9056, 9312, 12416, 13584, 18112, 18624, 24832, 27168, 27451, 36224, 37248, 54336, 54902, 72448, 74496, 82353, 108672, 109804, 164706, 217344, 219608, 329412, 439216, 658824, 878432, 1317648, 1756864, 2635296, 3513728, 5270592, 7027456, 10541184, 21082368]

約数ペア:

[(1, 21082368), (2, 10541184), (3, 7027456), (4, 5270592), (6, 3513728), (8, 2635296), (12, 1756864), (16, 1317648), (24, 878432), (32, 658824), (48, 439216), (64, 329412), (96, 219608), (97, 217344), (128, 164706), (192, 109804), (194, 108672), (256, 82353), (283, 74496), (291, 72448), (384, 54902), (388, 54336), (566, 37248), (582, 36224), (768, 27451), (776, 27168), (849, 24832), (1132, 18624), (1164, 18112), (1552, 13584), (1698, 12416), (2264, 9312), (2328, 9056), (3104, 6792), (3396, 6208), (4528, 4656)]