19640844

素因数分解:

$2^2\times 3^2\times {\mathrm{545579}}^1$

素因数の和:545589

約数の個数: 18

約数和(自身を含む): 49647780

約数和(自身を除く): 30006936

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 545579, 1091158, 1636737, 2182316, 3273474, 4910211, 6546948, 9820422, 19640844]

約数ペア:

[(1, 19640844), (2, 9820422), (3, 6546948), (4, 4910211), (6, 3273474), (9, 2182316), (12, 1636737), (18, 1091158), (36, 545579)]