19557208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 42550200

約数和(自身を除く): 22992992

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 289, 374, 578, 748, 769, 1156, 1496, 1538, 2312, 3076, 3179, 6152, 6358, 8459, 12716, 13073, 16918, 25432, 26146, 33836, 52292, 67672, 104584, 143803, 222241, 287606, 444482, 575212, 888964, 1150424, 1777928, 2444651, 4889302, 9778604, 19557208]

約数ペア:

[(1, 19557208), (2, 9778604), (4, 4889302), (8, 2444651), (11, 1777928), (17, 1150424), (22, 888964), (34, 575212), (44, 444482), (68, 287606), (88, 222241), (136, 143803), (187, 104584), (289, 67672), (374, 52292), (578, 33836), (748, 26146), (769, 25432), (1156, 16918), (1496, 13073), (1538, 12716), (2312, 8459), (3076, 6358), (3179, 6152)]