20565673712

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21071387}}^1$

素因数の和:21071456

約数の個数: 20

約数和(自身を含む): 40499207736

約数和(自身を除く): 19933534024

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21071387, 42142774, 84285548, 168571096, 337142192, 1285354607, 2570709214, 5141418428, 10282836856, 20565673712]

約数ペア:

[(1, 20565673712), (2, 10282836856), (4, 5141418428), (8, 2570709214), (16, 1285354607), (61, 337142192), (122, 168571096), (244, 84285548), (488, 42142774), (976, 21071387)]