19171856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1123}}^1$

素因数の和:1239

約数の個数: 40

約数和(自身を含む): 40976544

約数和(自身を除く): 21804688

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 97, 176, 194, 388, 776, 1067, 1123, 1552, 2134, 2246, 4268, 4492, 8536, 8984, 12353, 17072, 17968, 24706, 49412, 98824, 108931, 197648, 217862, 435724, 871448, 1198241, 1742896, 2396482, 4792964, 9585928, 19171856]

約数ペア:

[(1, 19171856), (2, 9585928), (4, 4792964), (8, 2396482), (11, 1742896), (16, 1198241), (22, 871448), (44, 435724), (88, 217862), (97, 197648), (176, 108931), (194, 98824), (388, 49412), (776, 24706), (1067, 17968), (1123, 17072), (1552, 12353), (2134, 8984), (2246, 8536), (4268, 4492)]