19912024

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{641}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 40908240

約数和(自身を除く): 20996216

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 353, 641, 706, 1282, 1412, 2564, 2824, 3883, 5128, 7051, 7766, 14102, 15532, 28204, 31064, 56408, 226273, 452546, 905092, 1810184, 2489003, 4978006, 9956012, 19912024]

約数ペア:

[(1, 19912024), (2, 9956012), (4, 4978006), (8, 2489003), (11, 1810184), (22, 905092), (44, 452546), (88, 226273), (353, 56408), (641, 31064), (706, 28204), (1282, 15532), (1412, 14102), (2564, 7766), (2824, 7051), (3883, 5128)]