21263270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 46780416

約数和(自身を除く): 25517146

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 47, 70, 94, 115, 161, 230, 235, 281, 322, 329, 470, 562, 658, 805, 1081, 1405, 1610, 1645, 1967, 2162, 2810, 3290, 3934, 5405, 6463, 7567, 9835, 10810, 12926, 13207, 15134, 19670, 26414, 32315, 37835, 45241, 64630, 66035, 75670, 90482, 92449, 132070, 184898, 226205, 303761, 452410, 462245, 607522, 924490, 1518805, 2126327, 3037610, 4252654, 10631635, 21263270]

約数ペア:

[(1, 21263270), (2, 10631635), (5, 4252654), (7, 3037610), (10, 2126327), (14, 1518805), (23, 924490), (35, 607522), (46, 462245), (47, 452410), (70, 303761), (94, 226205), (115, 184898), (161, 132070), (230, 92449), (235, 90482), (281, 75670), (322, 66035), (329, 64630), (470, 45241), (562, 37835), (658, 32315), (805, 26414), (1081, 19670), (1405, 15134), (1610, 13207), (1645, 12926), (1967, 10810), (2162, 9835), (2810, 7567), (3290, 6463), (3934, 5405)]