21168908

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5507}}^1$

素因数の和:5573

約数の個数: 18

約数和(自身を含む): 38286108

約数和(自身を除く): 17117200

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5507, 11014, 22028, 170717, 341434, 682868, 5292227, 10584454, 21168908]

約数ペア:

[(1, 21168908), (2, 10584454), (4, 5292227), (31, 682868), (62, 341434), (124, 170717), (961, 22028), (1922, 11014), (3844, 5507)]