21921392

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:941

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 23075728

約数列:

[1, 2, 4, 8, 16, 23, 46, 71, 92, 142, 184, 284, 368, 568, 839, 1136, 1633, 1678, 3266, 3356, 6532, 6712, 13064, 13424, 19297, 26128, 38594, 59569, 77188, 119138, 154376, 238276, 308752, 476552, 953104, 1370087, 2740174, 5480348, 10960696, 21921392]

約数ペア:

[(1, 21921392), (2, 10960696), (4, 5480348), (8, 2740174), (16, 1370087), (23, 953104), (46, 476552), (71, 308752), (92, 238276), (142, 154376), (184, 119138), (284, 77188), (368, 59569), (568, 38594), (839, 26128), (1136, 19297), (1633, 13424), (1678, 13064), (3266, 6712), (3356, 6532)]