19647972

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{7687}}^1$

素因数の和:7768

約数の個数: 36

約数和(自身を含む): 50371776

約数和(自身を除く): 30723804

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 7687, 15374, 23061, 30748, 46122, 69183, 92244, 138366, 276732, 545777, 1091554, 1637331, 2183108, 3274662, 4911993, 6549324, 9823986, 19647972]

約数ペア:

[(1, 19647972), (2, 9823986), (3, 6549324), (4, 4911993), (6, 3274662), (9, 2183108), (12, 1637331), (18, 1091554), (36, 545777), (71, 276732), (142, 138366), (213, 92244), (284, 69183), (426, 46122), (639, 30748), (852, 23061), (1278, 15374), (2556, 7687)]