16980205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{16249}}^1$

素因数の和:16284

約数の個数: 16

約数和(自身を含む): 23400000

約数和(自身を除く): 6419795

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 16249, 81245, 178739, 308731, 893695, 1543655, 3396041, 16980205]

約数ペア:

[(1, 16980205), (5, 3396041), (11, 1543655), (19, 893695), (55, 308731), (95, 178739), (209, 81245), (1045, 16249)]