81507818

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157351}}^1$

素因数の和:157397

約数の個数: 16

約数和(自身を含む): 143505024

約数和(自身を除く): 61997206

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 157351, 314702, 1101457, 2202914, 5821987, 11643974, 40753909, 81507818]

約数ペア:

[(1, 81507818), (2, 40753909), (7, 11643974), (14, 5821987), (37, 2202914), (74, 1101457), (259, 314702), (518, 157351)]