157178549199

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393931201}}^1$

素因数の和:393931230

約数の個数: 16

約数和(自身を含む): 252115969280

約数和(自身を除く): 94937420081

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393931201, 1181793603, 2757518407, 7484692819, 8272555221, 22454078457, 52392849733, 157178549199]

約数ペア:

[(1, 157178549199), (3, 52392849733), (7, 22454078457), (19, 8272555221), (21, 7484692819), (57, 2757518407), (133, 1181793603), (399, 393931201)]