19913696

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 44576280

約数和(自身を除く): 24662584

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 121, 139, 148, 176, 242, 278, 296, 352, 407, 484, 556, 592, 814, 968, 1112, 1184, 1529, 1628, 1936, 2224, 3058, 3256, 3872, 4448, 4477, 5143, 6116, 6512, 8954, 10286, 12232, 13024, 16819, 17908, 20572, 24464, 33638, 35816, 41144, 48928, 56573, 67276, 71632, 82288, 113146, 134552, 143264, 164576, 226292, 269104, 452584, 538208, 622303, 905168, 1244606, 1810336, 2489212, 4978424, 9956848, 19913696]

約数ペア:

[(1, 19913696), (2, 9956848), (4, 4978424), (8, 2489212), (11, 1810336), (16, 1244606), (22, 905168), (32, 622303), (37, 538208), (44, 452584), (74, 269104), (88, 226292), (121, 164576), (139, 143264), (148, 134552), (176, 113146), (242, 82288), (278, 71632), (296, 67276), (352, 56573), (407, 48928), (484, 41144), (556, 35816), (592, 33638), (814, 24464), (968, 20572), (1112, 17908), (1184, 16819), (1529, 13024), (1628, 12232), (1936, 10286), (2224, 8954), (3058, 6512), (3256, 6116), (3872, 5143), (4448, 4477)]