217639408

素因数分解:

$2^4\times 7^1\times {\mathrm{1943209}}^1$

素因数の和:1943224

約数の個数: 20

約数和(自身を含む): 481916080

約数和(自身を除く): 264276672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1943209, 3886418, 7772836, 13602463, 15545672, 27204926, 31091344, 54409852, 108819704, 217639408]

約数ペア:

[(1, 217639408), (2, 108819704), (4, 54409852), (7, 31091344), (8, 27204926), (14, 15545672), (16, 13602463), (28, 7772836), (56, 3886418), (112, 1943209)]