21940786

素因数分解:

$2^1\times 7^1\times {\mathrm{877}}^1\times {\mathrm{1787}}^1$

素因数の和:2673

約数の個数: 16

約数和(自身を含む): 37676736

約数和(自身を除く): 15735950

約数列:

[1, 2, 7, 14, 877, 1754, 1787, 3574, 6139, 12278, 12509, 25018, 1567199, 3134398, 10970393, 21940786]

約数ペア:

[(1, 21940786), (2, 10970393), (7, 3134398), (14, 1567199), (877, 25018), (1754, 12509), (1787, 12278), (3574, 6139)]