21161117

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 23232000

約数和(自身を除く): 2070883

約数列:

[1, 19, 43, 59, 439, 817, 1121, 2537, 8341, 18877, 25901, 48203, 358663, 492119, 1113743, 21161117]

約数ペア:

[(1, 21161117), (19, 1113743), (43, 492119), (59, 358663), (439, 48203), (817, 25901), (1121, 18877), (2537, 8341)]