21139346

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{7789}}^1$

素因数の和:7873

約数の個数: 16

約数和(自身を含む): 33652800

約数和(自身を除く): 12513454

約数列:

[1, 2, 23, 46, 59, 118, 1357, 2714, 7789, 15578, 179147, 358294, 459551, 919102, 10569673, 21139346]

約数ペア:

[(1, 21139346), (2, 10569673), (23, 919102), (46, 459551), (59, 358294), (118, 179147), (1357, 15578), (2714, 7789)]