19988583

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9871257

約数列:

[1, 3, 17, 31, 47, 51, 93, 141, 269, 527, 799, 807, 1457, 1581, 2397, 4371, 4573, 8339, 12643, 13719, 24769, 25017, 37929, 74307, 141763, 214931, 391933, 425289, 644793, 1175799, 6662861, 19988583]

約数ペア:

[(1, 19988583), (3, 6662861), (17, 1175799), (31, 644793), (47, 425289), (51, 391933), (93, 214931), (141, 141763), (269, 74307), (527, 37929), (799, 25017), (807, 24769), (1457, 13719), (1581, 12643), (2397, 8339), (4371, 4573)]