17901968

素因数分解:

$2^4\times 7^1\times {\mathrm{159839}}^1$

素因数の和:159854

約数の個数: 20

約数和(自身を含む): 39640320

約数和(自身を除く): 21738352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 159839, 319678, 639356, 1118873, 1278712, 2237746, 2557424, 4475492, 8950984, 17901968]

約数ペア:

[(1, 17901968), (2, 8950984), (4, 4475492), (7, 2557424), (8, 2237746), (14, 1278712), (16, 1118873), (28, 639356), (56, 319678), (112, 159839)]