18947004

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 27001668

約数列:

[1, 2, 3, 4, 6, 12, 43, 73, 86, 129, 146, 172, 219, 258, 292, 438, 503, 516, 876, 1006, 1509, 2012, 3018, 3139, 6036, 6278, 9417, 12556, 18834, 21629, 36719, 37668, 43258, 64887, 73438, 86516, 110157, 129774, 146876, 220314, 259548, 440628, 1578917, 3157834, 4736751, 6315668, 9473502, 18947004]

約数ペア:

[(1, 18947004), (2, 9473502), (3, 6315668), (4, 4736751), (6, 3157834), (12, 1578917), (43, 440628), (73, 259548), (86, 220314), (129, 146876), (146, 129774), (172, 110157), (219, 86516), (258, 73438), (292, 64887), (438, 43258), (503, 37668), (516, 36719), (876, 21629), (1006, 18834), (1509, 12556), (2012, 9417), (3018, 6278), (3139, 6036)]