221565188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{13613}}^1$

素因数の和:13943

約数の個数: 24

約数和(自身を含む): 418930008

約数和(自身を除く): 197364820

約数列:

[1, 2, 4, 13, 26, 52, 313, 626, 1252, 4069, 8138, 13613, 16276, 27226, 54452, 176969, 353938, 707876, 4260869, 8521738, 17043476, 55391297, 110782594, 221565188]

約数ペア:

[(1, 221565188), (2, 110782594), (4, 55391297), (13, 17043476), (26, 8521738), (52, 4260869), (313, 707876), (626, 353938), (1252, 176969), (4069, 54452), (8138, 27226), (13613, 16276)]