21785487

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1\times {\mathrm{421}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 29816832

約数和(自身を除く): 8031345

約数列:

[1, 3, 47, 141, 367, 421, 1101, 1263, 17249, 19787, 51747, 59361, 154507, 463521, 7261829, 21785487]

約数ペア:

[(1, 21785487), (3, 7261829), (47, 463521), (141, 154507), (367, 59361), (421, 51747), (1101, 19787), (1263, 17249)]