21166769

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 2831695

約数列:

[1, 13, 31, 53, 403, 689, 991, 1643, 12883, 21359, 30721, 52523, 399373, 682799, 1628213, 21166769]

約数ペア:

[(1, 21166769), (13, 1628213), (31, 682799), (53, 399373), (403, 52523), (689, 30721), (991, 21359), (1643, 12883)]