56215509

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{140891}}^1$

素因数の和:140920

約数の個数: 16

約数和(自身を含む): 90170880

約数和(自身を除く): 33955371

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 140891, 422673, 986237, 2676929, 2958711, 8030787, 18738503, 56215509]

約数ペア:

[(1, 56215509), (3, 18738503), (7, 8030787), (19, 2958711), (21, 2676929), (57, 986237), (133, 422673), (399, 140891)]