20871681904

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10271497}}^1$

素因数の和:10271632

約数の個数: 20

約数和(自身を含む): 40757304064

約数和(自身を除く): 19885622160

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10271497, 20542994, 41085988, 82171976, 164343952, 1304480119, 2608960238, 5217920476, 10435840952, 20871681904]

約数ペア:

[(1, 20871681904), (2, 10435840952), (4, 5217920476), (8, 2608960238), (16, 1304480119), (127, 164343952), (254, 82171976), (508, 41085988), (1016, 20542994), (2032, 10271497)]