18698631

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12541}}^1$

素因数の和:12622

約数の個数: 16

約数和(自身を含む): 28896768

約数和(自身を除く): 10198137

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12541, 37623, 87787, 263361, 890411, 2671233, 6232877, 18698631]

約数ペア:

[(1, 18698631), (3, 6232877), (7, 2671233), (21, 890411), (71, 263361), (213, 87787), (497, 37623), (1491, 12541)]