2506518

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 6720000

約数和(自身を除く): 4213482

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 114, 126, 133, 171, 189, 266, 342, 349, 378, 399, 513, 698, 798, 1026, 1047, 1197, 2094, 2394, 2443, 3141, 3591, 4886, 6282, 6631, 7182, 7329, 9423, 13262, 14658, 18846, 19893, 21987, 39786, 43974, 46417, 59679, 65961, 92834, 119358, 131922, 139251, 179037, 278502, 358074, 417753, 835506, 1253259, 2506518]

約数ペア:

[(1, 2506518), (2, 1253259), (3, 835506), (6, 417753), (7, 358074), (9, 278502), (14, 179037), (18, 139251), (19, 131922), (21, 119358), (27, 92834), (38, 65961), (42, 59679), (54, 46417), (57, 43974), (63, 39786), (114, 21987), (126, 19893), (133, 18846), (171, 14658), (189, 13262), (266, 9423), (342, 7329), (349, 7182), (378, 6631), (399, 6282), (513, 4886), (698, 3591), (798, 3141), (1026, 2443), (1047, 2394), (1197, 2094)]