20849776

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1069}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 42988320

約数和(自身を除く): 22138544

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 1069, 1219, 2138, 2438, 4276, 4876, 8552, 9752, 17104, 19504, 24587, 49174, 56657, 98348, 113314, 196696, 226628, 393392, 453256, 906512, 1303111, 2606222, 5212444, 10424888, 20849776]

約数ペア:

[(1, 20849776), (2, 10424888), (4, 5212444), (8, 2606222), (16, 1303111), (23, 906512), (46, 453256), (53, 393392), (92, 226628), (106, 196696), (184, 113314), (212, 98348), (368, 56657), (424, 49174), (848, 24587), (1069, 19504), (1219, 17104), (2138, 9752), (2438, 8552), (4276, 4876)]