18871504

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{19991}}^1$

素因数の和:20058

約数の個数: 20

約数和(自身を含む): 37185120

約数和(自身を除く): 18313616

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 19991, 39982, 79964, 159928, 319856, 1179469, 2358938, 4717876, 9435752, 18871504]

約数ペア:

[(1, 18871504), (2, 9435752), (4, 4717876), (8, 2358938), (16, 1179469), (59, 319856), (118, 159928), (236, 79964), (472, 39982), (944, 19991)]