21453664

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 44658432

約数和(自身を除く): 23204768

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 103, 184, 206, 283, 368, 412, 566, 736, 824, 1132, 1648, 2264, 2369, 3296, 4528, 4738, 6509, 9056, 9476, 13018, 18952, 26036, 29149, 37904, 52072, 58298, 75808, 104144, 116596, 208288, 233192, 466384, 670427, 932768, 1340854, 2681708, 5363416, 10726832, 21453664]

約数ペア:

[(1, 21453664), (2, 10726832), (4, 5363416), (8, 2681708), (16, 1340854), (23, 932768), (32, 670427), (46, 466384), (92, 233192), (103, 208288), (184, 116596), (206, 104144), (283, 75808), (368, 58298), (412, 52072), (566, 37904), (736, 29149), (824, 26036), (1132, 18952), (1648, 13018), (2264, 9476), (2369, 9056), (3296, 6509), (4528, 4738)]