217555408

素因数分解:

$2^4\times 7^1\times {\mathrm{1942459}}^1$

素因数の和:1942474

約数の個数: 20

約数和(自身を含む): 481730080

約数和(自身を除く): 264174672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1942459, 3884918, 7769836, 13597213, 15539672, 27194426, 31079344, 54388852, 108777704, 217555408]

約数ペア:

[(1, 217555408), (2, 108777704), (4, 54388852), (7, 31079344), (8, 27194426), (14, 15539672), (16, 13597213), (28, 7769836), (56, 3884918), (112, 1942459)]