21771569104

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10387199}}^1$

素因数の和:10387338

約数の個数: 20

約数和(自身を含む): 42504422400

約数和(自身を除く): 20732853296

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10387199, 20774398, 41548796, 83097592, 166195184, 1360723069, 2721446138, 5442892276, 10885784552, 21771569104]

約数ペア:

[(1, 21771569104), (2, 10885784552), (4, 5442892276), (8, 2721446138), (16, 1360723069), (131, 166195184), (262, 83097592), (524, 41548796), (1048, 20774398), (2096, 10387199)]