21590654

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{643}}^1$

素因数の和:911

約数の個数: 16

約数和(自身を含む): 32952192

約数和(自身を除く): 11361538

約数列:

[1, 2, 103, 163, 206, 326, 643, 1286, 16789, 33578, 66229, 104809, 132458, 209618, 10795327, 21590654]

約数ペア:

[(1, 21590654), (2, 10795327), (103, 209618), (163, 132458), (206, 104809), (326, 66229), (643, 33578), (1286, 16789)]