20970677

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4703}}^1$

素因数の和:4737

約数の個数: 16

約数和(自身を含む): 26342400

約数和(自身を除く): 5371723

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 4703, 32921, 61139, 230447, 427973, 1613129, 2995811, 20970677]

約数ペア:

[(1, 20970677), (7, 2995811), (13, 1613129), (49, 427973), (91, 230447), (343, 61139), (637, 32921), (4459, 4703)]