21177454

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:875

約数の個数: 16

約数和(自身を含む): 32387040

約数和(自身を除く): 11209586

約数列:

[1, 2, 71, 142, 293, 509, 586, 1018, 20803, 36139, 41606, 72278, 149137, 298274, 10588727, 21177454]

約数ペア:

[(1, 21177454), (2, 10588727), (71, 298274), (142, 149137), (293, 72278), (509, 41606), (586, 36139), (1018, 20803)]