20919345

素因数分解:

$3^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1583}}^1$

素因数の和:2472

約数の個数: 16

約数和(自身を含む): 33530112

約数和(自身を除く): 12610767

約数列:

[1, 3, 5, 15, 881, 1583, 2643, 4405, 4749, 7915, 13215, 23745, 1394623, 4183869, 6973115, 20919345]

約数ペア:

[(1, 20919345), (3, 6973115), (5, 4183869), (15, 1394623), (881, 23745), (1583, 13215), (2643, 7915), (4405, 4749)]