21125566

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19597}}^1$

素因数の和:19624

約数の個数: 24

約数和(自身を含む): 40215096

約数和(自身を除く): 19089530

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19597, 39194, 137179, 215567, 274358, 431134, 960253, 1508969, 1920506, 3017938, 10562783, 21125566]

約数ペア:

[(1, 21125566), (2, 10562783), (7, 3017938), (11, 1920506), (14, 1508969), (22, 960253), (49, 431134), (77, 274358), (98, 215567), (154, 137179), (539, 39194), (1078, 19597)]