19784478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{761}}^1$

素因数の和:1392

約数の個数: 32

約数和(自身を含む): 45354240

約数和(自身を除く): 25569762

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 619, 761, 1238, 1522, 1857, 2283, 3714, 4333, 4566, 5327, 8666, 10654, 12999, 15981, 25998, 31962, 471059, 942118, 1413177, 2826354, 3297413, 6594826, 9892239, 19784478]

約数ペア:

[(1, 19784478), (2, 9892239), (3, 6594826), (6, 3297413), (7, 2826354), (14, 1413177), (21, 942118), (42, 471059), (619, 31962), (761, 25998), (1238, 15981), (1522, 12999), (1857, 10654), (2283, 8666), (3714, 5327), (4333, 4566)]