18621456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 55484544

約数和(自身を除く): 36863088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 157, 168, 314, 336, 353, 471, 628, 706, 942, 1059, 1099, 1256, 1412, 1884, 2118, 2198, 2471, 2512, 2824, 3297, 3768, 4236, 4396, 4942, 5648, 6594, 7413, 7536, 8472, 8792, 9884, 13188, 14826, 16944, 17584, 19768, 26376, 29652, 39536, 52752, 55421, 59304, 110842, 118608, 166263, 221684, 332526, 387947, 443368, 665052, 775894, 886736, 1163841, 1330104, 1551788, 2327682, 2660208, 3103576, 4655364, 6207152, 9310728, 18621456]

約数ペア:

[(1, 18621456), (2, 9310728), (3, 6207152), (4, 4655364), (6, 3103576), (7, 2660208), (8, 2327682), (12, 1551788), (14, 1330104), (16, 1163841), (21, 886736), (24, 775894), (28, 665052), (42, 443368), (48, 387947), (56, 332526), (84, 221684), (112, 166263), (157, 118608), (168, 110842), (314, 59304), (336, 55421), (353, 52752), (471, 39536), (628, 29652), (706, 26376), (942, 19768), (1059, 17584), (1099, 16944), (1256, 14826), (1412, 13188), (1884, 9884), (2118, 8792), (2198, 8472), (2471, 7536), (2512, 7413), (2824, 6594), (3297, 5648), (3768, 4942), (4236, 4396)]