19659471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 30455040

約数和(自身を除く): 10795569

約数列:

[1, 3, 13, 19, 39, 43, 57, 129, 247, 559, 617, 741, 817, 1677, 1851, 2451, 8021, 10621, 11723, 24063, 26531, 31863, 35169, 79593, 152399, 344903, 457197, 504089, 1034709, 1512267, 6553157, 19659471]

約数ペア:

[(1, 19659471), (3, 6553157), (13, 1512267), (19, 1034709), (39, 504089), (43, 457197), (57, 344903), (129, 152399), (247, 79593), (559, 35169), (617, 31863), (741, 26531), (817, 24063), (1677, 11723), (1851, 10621), (2451, 8021)]