20681799256

素因数分解:

$2^3\times {\mathrm{6961}}^1\times {\mathrm{371387}}^1$

素因数の和:378354

約数の個数: 16

約数和(自身を含む): 38784048840

約数和(自身を除く): 18102249584

約数列:

[1, 2, 4, 8, 6961, 13922, 27844, 55688, 371387, 742774, 1485548, 2971096, 2585224907, 5170449814, 10340899628, 20681799256]

約数ペア:

[(1, 20681799256), (2, 10340899628), (4, 5170449814), (8, 2585224907), (6961, 2971096), (13922, 1485548), (27844, 742774), (55688, 371387)]