20367963

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 38384640

約数和(自身を除く): 18016677

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 97, 99, 101, 189, 231, 291, 297, 303, 679, 693, 707, 873, 909, 1067, 1111, 2037, 2079, 2121, 2619, 2727, 3201, 3333, 6111, 6363, 7469, 7777, 9603, 9797, 9999, 18333, 19089, 22407, 23331, 28809, 29391, 29997, 67221, 68579, 69993, 88173, 107767, 201663, 205737, 209979, 264519, 323301, 617211, 754369, 969903, 1851633, 2263107, 2909709, 6789321, 20367963]

約数ペア:

[(1, 20367963), (3, 6789321), (7, 2909709), (9, 2263107), (11, 1851633), (21, 969903), (27, 754369), (33, 617211), (63, 323301), (77, 264519), (97, 209979), (99, 205737), (101, 201663), (189, 107767), (231, 88173), (291, 69993), (297, 68579), (303, 67221), (679, 29997), (693, 29391), (707, 28809), (873, 23331), (909, 22407), (1067, 19089), (1111, 18333), (2037, 9999), (2079, 9797), (2121, 9603), (2619, 7777), (2727, 7469), (3201, 6363), (3333, 6111)]