20287504

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21491}}^1$

素因数の和:21558

約数の個数: 20

約数和(自身を含む): 39975120

約数和(自身を除く): 19687616

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21491, 42982, 85964, 171928, 343856, 1267969, 2535938, 5071876, 10143752, 20287504]

約数ペア:

[(1, 20287504), (2, 10143752), (4, 5071876), (8, 2535938), (16, 1267969), (59, 343856), (118, 171928), (236, 85964), (472, 42982), (944, 21491)]