20822912

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:691

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 26472448

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 176, 184, 253, 352, 368, 506, 643, 704, 736, 1012, 1286, 1408, 1472, 2024, 2572, 2944, 4048, 5144, 7073, 8096, 10288, 14146, 14789, 16192, 20576, 28292, 29578, 32384, 41152, 56584, 59156, 82304, 113168, 118312, 162679, 226336, 236624, 325358, 452672, 473248, 650716, 905344, 946496, 1301432, 1892992, 2602864, 5205728, 10411456, 20822912]

約数ペア:

[(1, 20822912), (2, 10411456), (4, 5205728), (8, 2602864), (11, 1892992), (16, 1301432), (22, 946496), (23, 905344), (32, 650716), (44, 473248), (46, 452672), (64, 325358), (88, 236624), (92, 226336), (128, 162679), (176, 118312), (184, 113168), (253, 82304), (352, 59156), (368, 56584), (506, 41152), (643, 32384), (704, 29578), (736, 28292), (1012, 20576), (1286, 16192), (1408, 14789), (1472, 14146), (2024, 10288), (2572, 8096), (2944, 7073), (4048, 5144)]