21211638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1399}}^1$

素因数の和:1449

約数の個数: 48

約数和(自身を含む): 51206400

約数和(自身を除く): 29994762

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 361, 399, 722, 798, 1083, 1399, 2166, 2527, 2798, 4197, 5054, 7581, 8394, 9793, 15162, 19586, 26581, 29379, 53162, 58758, 79743, 159486, 186067, 372134, 505039, 558201, 1010078, 1116402, 1515117, 3030234, 3535273, 7070546, 10605819, 21211638]

約数ペア:

[(1, 21211638), (2, 10605819), (3, 7070546), (6, 3535273), (7, 3030234), (14, 1515117), (19, 1116402), (21, 1010078), (38, 558201), (42, 505039), (57, 372134), (114, 186067), (133, 159486), (266, 79743), (361, 58758), (399, 53162), (722, 29379), (798, 26581), (1083, 19586), (1399, 15162), (2166, 9793), (2527, 8394), (2798, 7581), (4197, 5054)]