19651359

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71983}}^1$

素因数の和:72006

約数の個数: 16

約数和(自身を含む): 32248832

約数和(自身を除く): 12597473

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 71983, 215949, 503881, 935779, 1511643, 2807337, 6550453, 19651359]

約数ペア:

[(1, 19651359), (3, 6550453), (7, 2807337), (13, 1511643), (21, 935779), (39, 503881), (91, 215949), (273, 71983)]