213396540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{508087}}^1$

素因数の和:508106

約数の個数: 48

約数和(自身を含む): 682870272

約数和(自身を除く): 469473732

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 508087, 1016174, 1524261, 2032348, 2540435, 3048522, 3556609, 5080870, 6097044, 7113218, 7621305, 10161740, 10669827, 14226436, 15242610, 17783045, 21339654, 30485220, 35566090, 42679308, 53349135, 71132180, 106698270, 213396540]

約数ペア:

[(1, 213396540), (2, 106698270), (3, 71132180), (4, 53349135), (5, 42679308), (6, 35566090), (7, 30485220), (10, 21339654), (12, 17783045), (14, 15242610), (15, 14226436), (20, 10669827), (21, 10161740), (28, 7621305), (30, 7113218), (35, 6097044), (42, 5080870), (60, 3556609), (70, 3048522), (84, 2540435), (105, 2032348), (140, 1524261), (210, 1016174), (420, 508087)]