19811243864

素因数分解:

$2^3\times {\mathrm{257}}^1\times {\mathrm{9635819}}^1$

素因数の和:9636082

約数の個数: 16

約数和(自身を含む): 37290623400

約数和(自身を除く): 17479379536

約数列:

[1, 2, 4, 8, 257, 514, 1028, 2056, 9635819, 19271638, 38543276, 77086552, 2476405483, 4952810966, 9905621932, 19811243864]

約数ペア:

[(1, 19811243864), (2, 9905621932), (4, 4952810966), (8, 2476405483), (257, 77086552), (514, 38543276), (1028, 19271638), (2056, 9635819)]