21312863

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1447}}^1$

素因数の和:1574

約数の個数: 16

約数和(自身を含む): 25299456

約数和(自身を除く): 3986593

約数列:

[1, 11, 13, 103, 143, 1133, 1339, 1447, 14729, 15917, 18811, 149041, 206921, 1639451, 1937533, 21312863]

約数ペア:

[(1, 21312863), (11, 1937533), (13, 1639451), (103, 206921), (143, 149041), (1133, 18811), (1339, 15917), (1447, 14729)]