21181696

素因数分解:

$2^8\times {\mathrm{97}}^1\times {\mathrm{853}}^1$

素因数の和:966

約数の個数: 36

約数和(自身を含む): 42766612

約数和(自身を除く): 21584916

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 194, 256, 388, 776, 853, 1552, 1706, 3104, 3412, 6208, 6824, 12416, 13648, 24832, 27296, 54592, 82741, 109184, 165482, 218368, 330964, 661928, 1323856, 2647712, 5295424, 10590848, 21181696]

約数ペア:

[(1, 21181696), (2, 10590848), (4, 5295424), (8, 2647712), (16, 1323856), (32, 661928), (64, 330964), (97, 218368), (128, 165482), (194, 109184), (256, 82741), (388, 54592), (776, 27296), (853, 24832), (1552, 13648), (1706, 12416), (3104, 6824), (3412, 6208)]