20851839

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{367}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 31000320

約数和(自身を除く): 10148481

約数列:

[1, 3, 9, 59, 107, 177, 321, 367, 531, 963, 1101, 3303, 6313, 18939, 21653, 39269, 56817, 64959, 117807, 194877, 353421, 2316871, 6950613, 20851839]

約数ペア:

[(1, 20851839), (3, 6950613), (9, 2316871), (59, 353421), (107, 194877), (177, 117807), (321, 64959), (367, 56817), (531, 39269), (963, 21653), (1101, 18939), (3303, 6313)]