20921577047

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{337}}^1\times {\mathrm{1087}}^1$

素因数の和:1671

約数の個数: 32

約数和(自身を含む): 24712396800

約数和(自身を除く): 3790819753

約数列:

[1, 7, 41, 199, 287, 337, 1087, 1393, 2359, 7609, 8159, 13817, 44567, 57113, 67063, 96719, 216313, 311969, 366319, 469441, 1514191, 2564233, 2749583, 8868833, 15019079, 19247081, 62081831, 72897481, 105133553, 510282367, 2988796721, 20921577047]

約数ペア:

[(1, 20921577047), (7, 2988796721), (41, 510282367), (199, 105133553), (287, 72897481), (337, 62081831), (1087, 19247081), (1393, 15019079), (2359, 8868833), (7609, 2749583), (8159, 2564233), (13817, 1514191), (44567, 469441), (57113, 366319), (67063, 311969), (96719, 216313)]