21000314886

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1\times {\mathrm{30803}}^1$

素因数の和:30965

約数の個数: 48

約数和(自身を含む): 43687957824

約数和(自身を除く): 22687642938

約数列:

[1, 2, 3, 6, 37, 74, 83, 111, 166, 222, 249, 498, 1369, 2738, 3071, 4107, 6142, 8214, 9213, 18426, 30803, 61606, 92409, 113627, 184818, 227254, 340881, 681762, 1139711, 2279422, 2556649, 3419133, 5113298, 6838266, 7669947, 15339894, 42169307, 84338614, 94596013, 126507921, 189192026, 253015842, 283788039, 567576078, 3500052481, 7000104962, 10500157443, 21000314886]

約数ペア:

[(1, 21000314886), (2, 10500157443), (3, 7000104962), (6, 3500052481), (37, 567576078), (74, 283788039), (83, 253015842), (111, 189192026), (166, 126507921), (222, 94596013), (249, 84338614), (498, 42169307), (1369, 15339894), (2738, 7669947), (3071, 6838266), (4107, 5113298), (6142, 3419133), (8214, 2556649), (9213, 2279422), (18426, 1139711), (30803, 681762), (61606, 340881), (92409, 227254), (113627, 184818)]