21401954

素因数分解:

$2^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{5641}}^1$

素因数の和:5921

約数の個数: 16

約数和(自身を含む): 36830976

約数和(自身を除く): 15429022

約数列:

[1, 2, 7, 14, 271, 542, 1897, 3794, 5641, 11282, 39487, 78974, 1528711, 3057422, 10700977, 21401954]

約数ペア:

[(1, 21401954), (2, 10700977), (7, 3057422), (14, 1528711), (271, 78974), (542, 39487), (1897, 11282), (3794, 5641)]