213938256

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{636721}}^1$

素因数の和:636739

約数の個数: 40

約数和(自身を含む): 631628224

約数和(自身を除く): 417689968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 636721, 1273442, 1910163, 2546884, 3820326, 4457047, 5093768, 7640652, 8914094, 10187536, 13371141, 15281304, 17828188, 26742282, 30562608, 35656376, 53484564, 71312752, 106969128, 213938256]

約数ペア:

[(1, 213938256), (2, 106969128), (3, 71312752), (4, 53484564), (6, 35656376), (7, 30562608), (8, 26742282), (12, 17828188), (14, 15281304), (16, 13371141), (21, 10187536), (24, 8914094), (28, 7640652), (42, 5093768), (48, 4457047), (56, 3820326), (84, 2546884), (112, 1910163), (168, 1273442), (336, 636721)]