20856904

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 19241336

約数列:

[1, 2, 4, 8, 83, 101, 166, 202, 311, 332, 404, 622, 664, 808, 1244, 2488, 8383, 16766, 25813, 31411, 33532, 51626, 62822, 67064, 103252, 125644, 206504, 251288, 2607113, 5214226, 10428452, 20856904]

約数ペア:

[(1, 20856904), (2, 10428452), (4, 5214226), (8, 2607113), (83, 251288), (101, 206504), (166, 125644), (202, 103252), (311, 67064), (332, 62822), (404, 51626), (622, 33532), (664, 31411), (808, 25813), (1244, 16766), (2488, 8383)]