21069921

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{1217}}^1$

素因数の和:1448

約数の個数: 16

約数和(自身を含む): 29232000

約数和(自身を除く): 8162079

約数列:

[1, 3, 29, 87, 199, 597, 1217, 3651, 5771, 17313, 35293, 105879, 242183, 726549, 7023307, 21069921]

約数ペア:

[(1, 21069921), (3, 7023307), (29, 726549), (87, 242183), (199, 105879), (597, 35293), (1217, 17313), (3651, 5771)]