81751236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20707}}^1$

素因数の和:20768

約数の個数: 48

約数和(自身を含む): 222652416

約数和(自身を除く): 140901180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 20707, 41414, 62121, 82828, 124242, 144949, 248484, 289898, 434847, 579796, 869694, 973229, 1739388, 1946458, 2919687, 3892916, 5839374, 6812603, 11678748, 13625206, 20437809, 27250412, 40875618, 81751236]

約数ペア:

[(1, 81751236), (2, 40875618), (3, 27250412), (4, 20437809), (6, 13625206), (7, 11678748), (12, 6812603), (14, 5839374), (21, 3892916), (28, 2919687), (42, 1946458), (47, 1739388), (84, 973229), (94, 869694), (141, 579796), (188, 434847), (282, 289898), (329, 248484), (564, 144949), (658, 124242), (987, 82828), (1316, 62121), (1974, 41414), (3948, 20707)]