19716103664

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39750209}}^1$

素因数の和:39750248

約数の個数: 20

約数和(自身を含む): 39432208320

約数和(自身を除く): 19716104656

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39750209, 79500418, 159000836, 318001672, 636003344, 1232256479, 2464512958, 4929025916, 9858051832, 19716103664]

約数ペア:

[(1, 19716103664), (2, 9858051832), (4, 4929025916), (8, 2464512958), (16, 1232256479), (31, 636003344), (62, 318001672), (124, 159000836), (248, 79500418), (496, 39750209)]