20211716

素因数分解:

$2^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1140

約数の個数: 36

約数和(自身を含む): 41593356

約数和(自身を除く): 21381640

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 196, 202, 404, 707, 1021, 1414, 2042, 2828, 4084, 4949, 7147, 9898, 14294, 19796, 28588, 50029, 100058, 103121, 200116, 206242, 412484, 721847, 1443694, 2887388, 5052929, 10105858, 20211716]

約数ペア:

[(1, 20211716), (2, 10105858), (4, 5052929), (7, 2887388), (14, 1443694), (28, 721847), (49, 412484), (98, 206242), (101, 200116), (196, 103121), (202, 100058), (404, 50029), (707, 28588), (1021, 19796), (1414, 14294), (2042, 9898), (2828, 7147), (4084, 4949)]