21818804

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1399}}^1$

素因数の和:1967

約数の個数: 24

約数和(自身を含む): 43747200

約数和(自身を除く): 21928396

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1399, 2228, 2798, 3899, 5596, 7798, 9793, 15596, 19586, 39172, 779243, 1558486, 3116972, 5454701, 10909402, 21818804]

約数ペア:

[(1, 21818804), (2, 10909402), (4, 5454701), (7, 3116972), (14, 1558486), (28, 779243), (557, 39172), (1114, 19586), (1399, 15596), (2228, 9793), (2798, 7798), (3899, 5596)]