20213504612

素因数分解:

$2^2\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{363317}}^1$

素因数の和:365315

約数の個数: 24

約数和(自身を含む): 40447466304

約数和(自身を除く): 20233961692

約数列:

[1, 2, 4, 7, 14, 28, 1987, 3974, 7948, 13909, 27818, 55636, 363317, 726634, 1453268, 2543219, 5086438, 10172876, 721910879, 1443821758, 2887643516, 5053376153, 10106752306, 20213504612]

約数ペア:

[(1, 20213504612), (2, 10106752306), (4, 5053376153), (7, 2887643516), (14, 1443821758), (28, 721910879), (1987, 10172876), (3974, 5086438), (7948, 2543219), (13909, 1453268), (27818, 726634), (55636, 363317)]