21391368

素因数分解:

$2^3\times 3^1\times {\mathrm{263}}^1\times {\mathrm{3389}}^1$

素因数の和:3661

約数の個数: 32

約数和(自身を含む): 53697600

約数和(自身を除く): 32306232

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 263, 526, 789, 1052, 1578, 2104, 3156, 3389, 6312, 6778, 10167, 13556, 20334, 27112, 40668, 81336, 891307, 1782614, 2673921, 3565228, 5347842, 7130456, 10695684, 21391368]

約数ペア:

[(1, 21391368), (2, 10695684), (3, 7130456), (4, 5347842), (6, 3565228), (8, 2673921), (12, 1782614), (24, 891307), (263, 81336), (526, 40668), (789, 27112), (1052, 20334), (1578, 13556), (2104, 10167), (3156, 6778), (3389, 6312)]