18990738

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{81157}}^1$

素因数の和:81178

約数の個数: 24

約数和(自身を含む): 44312268

約数和(自身を除く): 25321530

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 81157, 162314, 243471, 486942, 730413, 1055041, 1460826, 2110082, 3165123, 6330246, 9495369, 18990738]

約数ペア:

[(1, 18990738), (2, 9495369), (3, 6330246), (6, 3165123), (9, 2110082), (13, 1460826), (18, 1055041), (26, 730413), (39, 486942), (78, 243471), (117, 162314), (234, 81157)]