19719888

素因数分解:

$2^4\times 3^1\times {\mathrm{311}}^1\times {\mathrm{1321}}^1$

素因数の和:1643

約数の個数: 40

約数和(自身を含む): 51145536

約数和(自身を除く): 31425648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 311, 622, 933, 1244, 1321, 1866, 2488, 2642, 3732, 3963, 4976, 5284, 7464, 7926, 10568, 14928, 15852, 21136, 31704, 63408, 410831, 821662, 1232493, 1643324, 2464986, 3286648, 4929972, 6573296, 9859944, 19719888]

約数ペア:

[(1, 19719888), (2, 9859944), (3, 6573296), (4, 4929972), (6, 3286648), (8, 2464986), (12, 1643324), (16, 1232493), (24, 821662), (48, 410831), (311, 63408), (622, 31704), (933, 21136), (1244, 15852), (1321, 14928), (1866, 10568), (2488, 7926), (2642, 7464), (3732, 5284), (3963, 4976)]