31981864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{210407}}^1$

素因数の和:210432

約数の個数: 16

約数和(自身を含む): 63122400

約数和(自身を除く): 31140536

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 210407, 420814, 841628, 1683256, 3997733, 7995466, 15990932, 31981864]

約数ペア:

[(1, 31981864), (2, 15990932), (4, 7995466), (8, 3997733), (19, 1683256), (38, 841628), (76, 420814), (152, 210407)]