19876881

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{541}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 27351488

約数和(自身を除く): 7474607

約数列:

[1, 3, 37, 111, 331, 541, 993, 1623, 12247, 20017, 36741, 60051, 179071, 537213, 6625627, 19876881]

約数ペア:

[(1, 19876881), (3, 6625627), (37, 537213), (111, 179071), (331, 60051), (541, 36741), (993, 20017), (1623, 12247)]