21940048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 46061288

約数和(自身を除く): 24121240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 313, 337, 626, 674, 1252, 1348, 2504, 2696, 4069, 4381, 5008, 5392, 8138, 8762, 16276, 17524, 32552, 35048, 65104, 70096, 105481, 210962, 421924, 843848, 1371253, 1687696, 2742506, 5485012, 10970024, 21940048]

約数ペア:

[(1, 21940048), (2, 10970024), (4, 5485012), (8, 2742506), (13, 1687696), (16, 1371253), (26, 843848), (52, 421924), (104, 210962), (208, 105481), (313, 70096), (337, 65104), (626, 35048), (674, 32552), (1252, 17524), (1348, 16276), (2504, 8762), (2696, 8138), (4069, 5392), (4381, 5008)]