19503471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1279}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 11462289

約数列:

[1, 3, 13, 17, 23, 39, 51, 69, 221, 299, 391, 663, 897, 1173, 1279, 3837, 5083, 15249, 16627, 21743, 29417, 49881, 65229, 88251, 282659, 382421, 500089, 847977, 1147263, 1500267, 6501157, 19503471]

約数ペア:

[(1, 19503471), (3, 6501157), (13, 1500267), (17, 1147263), (23, 847977), (39, 500089), (51, 382421), (69, 282659), (221, 88251), (299, 65229), (391, 49881), (663, 29417), (897, 21743), (1173, 16627), (1279, 15249), (3837, 5083)]