20974672

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10007}}^1$

素因数の和:10146

約数の個数: 20

約数和(自身を含む): 40952736

約数和(自身を除く): 19978064

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10007, 20014, 40028, 80056, 160112, 1310917, 2621834, 5243668, 10487336, 20974672]

約数ペア:

[(1, 20974672), (2, 10487336), (4, 5243668), (8, 2621834), (16, 1310917), (131, 160112), (262, 80056), (524, 40028), (1048, 20014), (2096, 10007)]