21865704

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{829}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 62947200

約数和(自身を除く): 41081496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 157, 168, 314, 471, 628, 829, 942, 1099, 1256, 1658, 1884, 2198, 2487, 3297, 3316, 3768, 4396, 4974, 5803, 6594, 6632, 8792, 9948, 11606, 13188, 17409, 19896, 23212, 26376, 34818, 46424, 69636, 130153, 139272, 260306, 390459, 520612, 780918, 911071, 1041224, 1561836, 1822142, 2733213, 3123672, 3644284, 5466426, 7288568, 10932852, 21865704]

約数ペア:

[(1, 21865704), (2, 10932852), (3, 7288568), (4, 5466426), (6, 3644284), (7, 3123672), (8, 2733213), (12, 1822142), (14, 1561836), (21, 1041224), (24, 911071), (28, 780918), (42, 520612), (56, 390459), (84, 260306), (157, 139272), (168, 130153), (314, 69636), (471, 46424), (628, 34818), (829, 26376), (942, 23212), (1099, 19896), (1256, 17409), (1658, 13188), (1884, 11606), (2198, 9948), (2487, 8792), (3297, 6632), (3316, 6594), (3768, 5803), (4396, 4974)]