28493907

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1379

約数の個数: 24

約数和(自身を含む): 42128064

約数和(自身を除く): 13634157

約数列:

[1, 3, 13, 39, 43, 129, 169, 507, 559, 1307, 1677, 3921, 7267, 16991, 21801, 50973, 56201, 168603, 220883, 662649, 730613, 2191839, 9497969, 28493907]

約数ペア:

[(1, 28493907), (3, 9497969), (13, 2191839), (39, 730613), (43, 662649), (129, 220883), (169, 168603), (507, 56201), (559, 50973), (1307, 21801), (1677, 16991), (3921, 7267)]