20658729

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5821}}^1$

素因数の和:5857

約数の個数: 24

約数和(自身を含む): 34093632

約数和(自身を除く): 13434903

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5821, 17463, 40747, 75673, 122241, 227019, 529711, 983749, 1589133, 2951247, 6886243, 20658729]

約数ペア:

[(1, 20658729), (3, 6886243), (7, 2951247), (13, 1589133), (21, 983749), (39, 529711), (91, 227019), (169, 122241), (273, 75673), (507, 40747), (1183, 17463), (3549, 5821)]