21705908

素因数分解:

$2^2\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1049}}^1$

素因数の和:1799

約数の個数: 24

約数和(自身を含む): 43512000

約数和(自身を除く): 21806092

約数列:

[1, 2, 4, 7, 14, 28, 739, 1049, 1478, 2098, 2956, 4196, 5173, 7343, 10346, 14686, 20692, 29372, 775211, 1550422, 3100844, 5426477, 10852954, 21705908]

約数ペア:

[(1, 21705908), (2, 10852954), (4, 5426477), (7, 3100844), (14, 1550422), (28, 775211), (739, 29372), (1049, 20692), (1478, 14686), (2098, 10346), (2956, 7343), (4196, 5173)]