21263564

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7829}}^1$

素因数の和:7937

約数の個数: 24

約数和(自身を含む): 42971040

約数和(自身を除く): 21707476

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7829, 15658, 31316, 54803, 109606, 219212, 759413, 1518826, 3037652, 5315891, 10631782, 21263564]

約数ペア:

[(1, 21263564), (2, 10631782), (4, 5315891), (7, 3037652), (14, 1518826), (28, 759413), (97, 219212), (194, 109606), (388, 54803), (679, 31316), (1358, 15658), (2716, 7829)]