21787304

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 51546240

約数和(自身を除く): 29758936

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 113, 154, 226, 308, 313, 452, 616, 626, 791, 904, 1243, 1252, 1582, 2191, 2486, 2504, 3164, 3443, 4382, 4972, 6328, 6886, 8701, 8764, 9944, 13772, 17402, 17528, 24101, 27544, 34804, 35369, 48202, 69608, 70738, 96404, 141476, 192808, 247583, 282952, 389059, 495166, 778118, 990332, 1556236, 1980664, 2723413, 3112472, 5446826, 10893652, 21787304]

約数ペア:

[(1, 21787304), (2, 10893652), (4, 5446826), (7, 3112472), (8, 2723413), (11, 1980664), (14, 1556236), (22, 990332), (28, 778118), (44, 495166), (56, 389059), (77, 282952), (88, 247583), (113, 192808), (154, 141476), (226, 96404), (308, 70738), (313, 69608), (452, 48202), (616, 35369), (626, 34804), (791, 27544), (904, 24101), (1243, 17528), (1252, 17402), (1582, 13772), (2191, 9944), (2486, 8764), (2504, 8701), (3164, 6886), (3443, 6328), (4382, 4972)]